Re: [HUMOR] $500 patch cable

[Kent Johnson]

On Tue, Jun 17, 2008 at 12:37 PM, Michael ODonnell
<[EMAIL PROTECTED]> wrote:

>   http://www.machinadynamica.com/machina31.htm

Their entire product line is fascinating. The Teleportation Tweak is
an audio system improvement that they do over the phone! "Bonus: The
picture quality of any video system in the house will also be
improved."
http://www.machinadynamica.com/machina60.htm

WTF! I wonder how much money they are pulling in, presumably from the
same idiots^H^H^H^H^H^Hcustomers who help out the widows of deposed
Nigerian rulers...

Kent
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Re: Funniest thing I've heard today and it's only 9 AM

[Kent Johnson]

On Tue, Jun 3, 2008 at 9:02 AM, kenta <[EMAIL PROTECTED]> wrote:
> I just had to share this, one of the consulants here just sent an e-mail in
> which he said:
>
> "Postfix is open source. That's not a good thing for any product to support
> across different Linux flavors.
> That's a dark road to follow. "

I certainly hope he sent the email using Microsoft Outlook on a
Windows PC. You should look for a large, heavy clue stick to hit him
with.

Kent
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Re: Alternatives to Comcast

[Kent Johnson]

On Wed, May 21, 2008 at 1:55 PM, Thomas Charron <[EMAIL PROTECTED]> wrote:
> On 5/20/08, Kent Johnson <[EMAIL PROTECTED]> wrote:
>> On Tue, May 20, 2008 at 9:18 PM, Dan Miller <[EMAIL PROTECTED]> wrote:
>> > I've never done DSL before, but I know its different
>> > setup with PPoE and such.
>> Not sure what you mean by that. I'm no networking guru, but I have DSL
>> (from TDS, in Hollis), one box has a combined modem/router/wireless
>> hub with NAT and DHCP, as far as I can tell it's plain vanilla
>> ethernet at the workstation. No PPoE.
>
>  If you have a dynamic IP, then your ActionTek box is logging into
> TDS via PPPoE.

OK. Newbie question - since AFAICT this is invisible to me, why is it
an issue? Does it only matter to people who are doing something more
sophisticated than watching YouTube videos and downloading porn?

Thanks,
Kent
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Re: Alternatives to Comcast

[Kent Johnson]

On Tue, May 20, 2008 at 9:18 PM, Dan Miller <[EMAIL PROTECTED]> wrote:
> I've never done DSL before, but I know its different
> setup with PPoE and such.

Not sure what you mean by that. I'm no networking guru, but I have DSL
(from TDS, in Hollis), one box has a combined modem/router/wireless
hub with NAT and DHCP, as far as I can tell it's plain vanilla
ethernet at the workstation. No PPoE.

Kent
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Re: Linux/FOSS cons?

[Kent Johnson]

On Sun, May 18, 2008 at 1:27 PM, Jeff Kinz <[EMAIL PROTECTED]> wrote:
>
> I have  nephew who is interested in attending Linux/Open Source
> conventions, but not the ordinary business oriented ones.
>
> He is looking for any that are organized more along the lines of a
> Science Fiction con.  (created by and put on by the fans themselves)

PyCon is volunteer-run but he just missed it (in March). EuroPython is
coming up in July. ONCON is organized by O'Reilly but my impression is
that it is pretty informal.

http://www.python.org/community/pycon/
http://www.europython.org/
http://en.oreilly.com/oscon2008/public/content/home

Kent
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IOGEAR GCS932U report

[Kent Johnson]

On Fri, Apr 25, 2008 at 9:35 AM, Kent Johnson <[EMAIL PROTECTED]> wrote:
> Chip Marshall wrote:
>
>  > I've had a IOGEAR 2-port KVM with integrated cables for a few years and
>  > have never had a problem with it. They have an updated model that does
>  > DVI, USB, and audio, the GCS932U.
>
>  Thanks to all for your ideas. I have ordered this one.

I received the switch yesterday. It seems to work fine. The button
switcher is nice - all the cable mess is well hidden, just a little
button on my desk to switch between computers.

My Mac seemed to be a little confused at first but it seems to have
sorted it out...

The cables are a bit short. The video connectors on the two computers
have to be within 4-5 feet of each other. In my case that means both
laptops on the same side of my desk which is not really what I wanted.
Also the various connectors on each computer have to be fairly close -
the audio and USB cables sprout from the DVI connector and they are
only about 10" long. I have a MacBook Pro which has the DVI connector
on one side of the case and the audio on the other. That means I will
need an audio extension cable to switch the audio. Also I have to use
the USB port on the same side as the DVI, the USB cable won't reach to
the other side either.

In summary - seems to work OK, the button is a nice feature, I wish
the cables were longer but I can work with it the way it is.

Kent
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Re: Source for DVI/USB KVM switch, cables

[Kent Johnson]

Chip Marshall wrote:

> I've had a IOGEAR 2-port KVM with integrated cables for a few years and
> have never had a problem with it. They have an updated model that does
> DVI, USB, and audio, the GCS932U.

Thanks to all for your ideas. I have ordered this one. The AMCONN switch 
does not support the resolution I need.

Kent
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Source for DVI/USB KVM switch, cables

[Kent Johnson]

Hi,

I need a KVM switch that will, at a minimum, switch one DVI monitor at 
1920x1200 and one USB port between two computers. An extra USB port and 
audio would be a bonus but not required. I will also need the DVI and 
USB cables to go between the switch and the computers.

Can anyone recommend a particular brand or supplier for these? They seem 
to be pretty pricey. For example this unit
http://www.gefen.com/kvm/product.jsp?prod_id=3113

which is $149 from NewEgg, including the required cables.

Thanks,
Kent
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Re: cron question / process queue

[Kent Johnson]

Steven W. Orr wrote:
> Still sounds like a job for "at",  no?

I don't see it. I have monthly, weekly and daily jobs that I want to run 
sequentially, in that order, starting at 8pm. How would I do that using 
'at'? Preferably without making the actual jobs know about each other, 
e.g. not teaching the weekly job that it should be followed by the daily 
job.

I made a combined job that basically does this:
if it is the first of the month:
   run monthly job and wait for completion
if it is Saturday:
   run the weekly job and wait for completion
run the daily job

The combined job is scheduled for 8pm execution with cron. Seems to work 
so far...

Kent
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Re: cron question / process queue

[Kent Johnson]

Steven W. Orr wrote:
> This is a classic question: How to run something on a periodic basis that 
> may take longer to execute than the interval between the next occurance. 
> Think of it not as a task that needs to be run at an interval so much as a 
> task that needs to be rescheduled after it finally completes.
> 
> If that description is appropriate for what you're doing then you might 
> want to consider not using cron in the first place. Look at using at(1) 
> instead. Your script that gets run at a certain time would then requeue 
> itself based on when it finished.

Thanks for the pointer. That is not quite my situation - I need to queue 
a different job when the first one finishes, and the job to queue (if 
any) depends on the date.

I ended up making a program that combines all three jobs and runs the 
correct ones in sequence based on the date.

Kent
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cron question / process queue

[Kent Johnson]

Hi,

I have a server that runs regular daily, weekly and monthly updates, all 
scheduled with cron.

The updates are lengthy - the weekly update now takes about 8 hours - 
and I would like for them not to overlap. I also want them to run at 
night, for some reasonable value of night, so I can't just schedule them 
far apart.

I can use the historical run times to schedule the jobs to prevent them 
overlapping, but I was wondering if there is a more robust and flexible 
way to do this; some way to say
   daily - queue the daily update
   weekly - queue the weekly update
   monthly - queue the monthly update
and have the updates run sequentially.

I guess it would not be hard to write a Python program to do determine 
which updates to run and start the correct processes, but I'm wondering 
if there is some system facility that would help.

Thanks,
Kent
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Re: OLPC Crisis: Customer Data Lost

[Kent Johnson]

Bill McGonigle wrote:
> Update.  I got this e-mail:
> 
>> Dear Donor,
>>
>> Please accept my apologies for the delay in receiving your XO  
>> laptop.  Give One Get One was such a phenomenal success that we  
>> over-taxed our order processing and payment systems.  Demand  
>> exceeded supply.Additional XO laptops are being built now and  
>> will be delivered in 30 to 45 days.  If you wish to reconsider your  
>> contribution in the face of this delay, we will issue a refund to  
>> you.  We have set up a dedicated phone line for these requests.   
>> The number is 1-800-201-7144. In the meanwhile, please know that  
>> laptops are in the process of going to Mongolia, Cambodia,  
>> Afghanistan, Rwanda and Haiti as part of the "give one" side of the  
>> equation.  Fortunately, OLPC's mission of getting laptops to the  
>> children in these countries has not been delayed.

So they can ship the second computer you bought to Mongolia, without 
being paid for it, but they can't charge you and ship one to New 
Hampshire. Sheesh. What a slap in the face!

My daughter is very happy with our Eee PC. We are both sitting by the 
warm stove with our respective laptops, reading email and browsing the 
web...

Kent
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Re: ARTICLE - Why the MS Office file formats is so complicated

[Kent Johnson]

Shawn O'Shea wrote:

Putting on my python-tutor hat...

> import win32com.client
> import os
> 
> docsdir = "C:\Documents and Settings\shawn\My Documents\wordtest"
> outdir = "C:\Documents and Settings\shawn\My Documents\converted"

Raw strings or / or doubled \\ would be prudent here.

> docslist = os.listdir(docsdir)
> 
> app=win32com.client.Dispatch("Word.Application")
> app.Visible=1
> 
> for file in docslist:

'file' is a poor choice of name, it shadows the built-in file().

> print os.path.abspath(docsdir+"\\"+file)

os.path.join(docsdir, file) is more idiomatic. You might want to check 
for directories here too, or check the extension.

> doc=app.Documents.Open(os.path.abspath(docsdir+"\\"+file))
> doc.SaveAs(outdir+"\\"+file.replace(file[-3:],"rtf"),6)

os.path.splitext(file)[0] + '.rtf' is more robust; file[:-3]+'rtf' is 
simpler if you are sure of the extension.

Kent

> doc.Close()
> 
> app.Quit()

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Re: Microsoft flooding sites with fake traffic

[Kent Johnson]

Ed lawson wrote:

> I know nothing from the technical side of this, but I mentioned this to
> someone who works at MSFT and their first comment was that it was
> likely Live Search crawling to build an index.

Except:
- the referrer is a single-word search at search.live.com, e.g.
http://search.live.com/results.aspx?q=marketing&mrt=en-us&FORM=LIVSOP

- The client acts like a browser, in that it fetches CSS and JavaScript 
files as well as the primary page, and the User-Agent seems to be MSIE 7:
"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322)"

Here is a complete sequence from my logs:
65.55.165.51 - - [20/Feb/2008:02:22:16 -0500] "GET 
/category/Web-Marketing/ HTTP/1.1" 200 15810 
"http://search.live.com/results.aspx?q=marketing&mrt=en-us&FORM=LIVSOP"; 
"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322)"

65.55.165.51 - - [20/Feb/2008:02:22:18 -0500] "GET 
/media/public/css/blogcosm.css HTTP/1.1" 200 8114 
"http://blogcosm.com/category/Web-Marketing/"; "Mozilla/4.0 (compatible; 
MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322)"

65.55.165.51 - - [20/Feb/2008:02:22:19 -0500] "GET 
/media/public/css/category_detail.css HTTP/1.1" 200 2952 
"http://blogcosm.com/category/Web-Marketing/"; "Mozilla/4.0 (compatible; 
MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322)"

65.55.165.51 - - [20/Feb/2008:02:22:19 -0500] "GET 
/media/public/css/toc.css HTTP/1.1" 200 399 
"http://blogcosm.com/category/Web-Marketing/"; "Mozilla/4.0 (compatible; 
MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322)"

65.55.165.51 - - [20/Feb/2008:02:22:19 -0500] "GET 
/media/public/css/one-liners.css HTTP/1.1" 200 223 
"http://blogcosm.com/category/Web-Marketing/"; "Mozilla/4.0 (compatible; 
MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322)"

65.55.165.51 - - [20/Feb/2008:02:22:19 -0500] "GET /css/colors.css 
HTTP/1.1" 200 4410 "http://blogcosm.com/category/Web-Marketing/"; 
"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322)"


I seem to have one of these roughly every 1/2 hour though the interval 
varies widely.

Kent
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Re: ARTICLE - Why the MS Office file formats is so complicated

[Kent Johnson]

Ben Scott wrote:
> On Wed, Feb 20, 2008 at 6:53 PM, Alex Hewitt <[EMAIL PROTECTED]> wrote:
>> I just tried to read these files again with Word and it can read them.
>> I'll see if there's a way to read/convert these files from a batch job.
> 
>   Not a traditional batch file, I don't think, but it should be very
> possible with either (1) VBA or (2) AutoIt.  VBA is "Visual Basic for
> Applications", is built-in to MS Office, and it can do just about
> anything, provided you can stomach the syntax.

or (3) Python. Python can access COM objects on win32 so anything can do 
from VBA you should be able to do from Python.

Kent
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Re: Negroponte, OLPC, AAAS, obese electronics

[Kent Johnson]

Ted Roche wrote:
> Interesting post about Nicholas Negroponte's keynote at the AAAS annual 
> meeting. I like the phrase 'obese electronics.'

This one?
http://blog.wired.com/wiredscience/2008/02/negroponte-olpc.html

Kent
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Re: Permissions on python setup.py install

[Kent Johnson]

Labitt, Bruce wrote:
> I’m trying install numpy on a linux box.  Everything went ok until the 
> “end” when setup complained about having insufficient permissions.  I 
> then installed as root.  The install seemed to go ok, but the example 
> file in the readme doesn’t run. 
> 
> $ python –c ‘import numpy; numpy.test()’
> 
> Running from numpy source directory
> 
> Traceback (most recent call last):
> 
> File “”, line 1, in?
> 
> AttributeError: ‘module’ object has no attribute ‘test’
> 
> What should I look for?  TIA

My guess is there is something called numpy in the dir you are running 
from that is being imported instead of the actual numpy package which 
should be somewhere else now (somewhere like 
/path/to/python/lib/site-packages/, the actual path is os-dependent).

python -c 'import numpy; print numpy.__file__'

will show you where numpy is being imported from. Try running the test 
from a different dir than the numpy install dir - your home dir should work.

Kent
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Re: Can a browser based application write to files on a local hard disk?

[Kent Johnson]

Alex Hewitt wrote:
> Scenario: Need a web application which collects user data that needs to
> be stored on the user's local hard disk. Which tools can do this?

Google Gears: http://code.google.com/apis/gears/
Signed Java applets
Probably Adobe AIR and MS Silverlight

Lots of examples here:
http://ajaxian.com/by/topic/offline/

Kent
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Re: managing applications

[Kent Johnson]

Bill McGonigle wrote:

> cfengine looks like it might be that tool.  I'm going to go do some  
> reading.  Thanks to Tom & Shawn for the pointer!

You might also look at Puppet which claims "Puppet could be said to be 
the next-generation cfengine. The overall design is heavily influenced 
by cfengine, but the language is more powerful than cfengine's and the 
library is more flexible."
http://www.reductivelabs.com/projects/puppet/
http://reductivelabs.com/trac/puppet/wiki/CfengineVsPuppet

I have no experience with either of these. If you end up using one I 
would be interested in hearing about it.

Kent
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Re: C complex number usage

[Kent Johnson]

Bruce Labitt wrote:
> Thanks, Kent.
> 
> It actually did help.  Maybe I'll show up to the January PySig and annoy 
> people there...  

Or January MerriLUG where I am presenting on Python.

Do you know if Python (scientific/scipy) is available
> for the CELL processor, aka PS3?

This document suggests that CorePy can interface to numpy:
http://www.netlib.org/utk/people/JackDongarra/PAPERS/scop3.pdf

and this page shows using yum to install numpy on a PS3 running FC6 so I 
guess it is not out of the question.
   I've got a massively parallel problem
> I need to solve...  My initial look at python was favorable - it appears 
> to be higher level than C.

Python is *much* higher-level than C! However one area where Python is 
weak is in taking advantage of multiple cores. It's not impossible but 
you should be aware of that.
> 
> However, right now I need to do this in C...  I'm eventually going to 
> use the FFTW libraries to help solve my problem.

scipy apparently will use fftw if it is available:
http://www.scipy.org/FAQ?highlight=%28fftw%29#head-690f5c7fb8d9a6998229bb2b271a198e078a7975

Kent
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Re: C complex number usage

[Kent Johnson]

Bruce Labitt wrote:
> Hopefully a simple question.  I'm trying to write a C program that uses 
> complex numbers.
> Hopefully someone can point me in the write direction.  TIA.

If you don't have a specific requirement for C, you might consider 
learning Python instead.
> python.org :-)

Python has built-in support for complex numbers and the add-on package 
numpy supports FFT of complex arrays:
http://numpy.scipy.org/numpydoc/numpy-17.html

Your code would look something like this in Python:

from random import gauss

N = 1024
mymean = ...
mystdev = ...
g = [ complex(gauss(mymean, mystdev), gauss(mymean, mystdev)) for i in 
range(N) ]

HTH,
Kent
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Re: Python's making my head hurt...

[Kent Johnson]

Star wrote:
> Okay, I'm not a python coder, nor do I really desire to be yet...  I'm
> trying to run a system that uses Python pretty heavily, and while it's
> starting up, I'm getting an error just before it bombs...
> 
> The error is "ImportError: /usr/lib/python2.4/lib-dynload/cPickle.so:
> undefined symbol: PyUnicodeUCS4_DecodeRawUnicodeEscape"

Wild guess about something I know almost nothing about ;-) - cPickle.so 
was compiled for wide unicode (UCS4) but some other part of Python was not.

> Can any python-guys/gals point me somewhere where I might find some
> more information?

comp.lang.python would be the place to ask.

Kent
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Re: Eee PC hands on?

[Kent Johnson]

Jeff Macdonald wrote:
> I have one. Perhaps some drinks at Martha's would entice me to come to
> the next meeting there. :)

I can't come tomorrow but I'm presenting in January; would a talk on 
Python entice you?

Kent
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Re: Eee PC hands on?

[Kent Johnson]

Bill McGonigle wrote:
> Back to the subject at hand, I have a Nokia n810 on order to fill the  
> need folks are talking about.  If PC Connection ever gets their  
> shipment I'll tell y'all if it's any good.

And I was worried about the Eee PC being small! This review has a 
picture of an n810 on top of an Eee PC, it makes the Eee PC look big!
http://arstechnica.com/news.ars/post/20071123-nokia-n810-unboxing-and-first-impressions.html

Kent

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Re: Eee PC hands on?

[Kent Johnson]

Ben Scott wrote:

> If you're thinking "this will be like my
> Thinkpad/Dell/whatever, just a bit smaller", you'll probably be
> disappointed.

No, not thinking that. I know it is not like my MacBook, that is why I 
would like to get my hands on one.

>   These things are designed to be small and light first.  You're never
> going to get full-sized features with that.  They're also designed to
> be cheap, durable, and low-power.  Hence all the buzz.  As we all
> know, buzz doesn't mean they're the right tool for every job.  :)

I am thinking of this for a few specific jobs:
- for my daughter to use while for web surfing and writing away from her 
desktop.
- for me and my daughters to use next summer for web surfing and email 
when I take a trip abroad.

In both cases the alternative is my MacBook Pro, which works great but 
is also larger, heavier, sometimes in use by me, and worth 5-10 times 
what the Eee PC is, all of which are disadvantages for some or all of 
the listed uses.

Kent
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Eee PC hands on?

[Kent Johnson]

I am thinking about getting an Eee PC but I am concerned about the small 
size of the screen and keyboard. Has anyone on this list actually tried 
one and can comment? Is there any place I might be able to try one?

Can anyone compare the Eee keyboard with that of the XO-1 (OLPC), 
particularly from the point of view of usability by an adult with 
average-sized hands?

Any scuttlebutt about updates for Eee PC? I don't need this right away 
and can wait if something better is in the pipeline.

Thanks!
Kent
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Re: which and PATH

[Kent Johnson]

Stephen Ryan wrote:
> You didn't happen to have installed /opt/local/bin/curl during this
> session, did you?  I'm guessing that you're running into the fact that
> bash caches the PATH location where it last found each binary; run 'hash
> -r' to make it clear the cache.

Bingo! Thank you!
Kent
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which and PATH

[Kent Johnson]

Can someone please explain this to me?

kent $ which curl
/opt/local/bin/curl

So if I run curl, I should get /opt/local/bin/curl, right? But I seem to 
get /usr/bin/curl:

kent $ /opt/local/bin/curl -V
curl 7.17.1 (i386-apple-darwin8.11.1) libcurl/7.17.1 zlib/1.2.3

kent $ curl -V
curl 7.13.1 (powerpc-apple-darwin8.0) libcurl/7.13.1 OpenSSL/0.9.7l

kent $ /usr/bin/curl -V
curl 7.13.1 (powerpc-apple-darwin8.0) libcurl/7.13.1 OpenSSL/0.9.7l

/opt/local/bin is ahead of /usr/bin/ in PATH:

kent $ echo $PATH$
/Users/kent/bin:/usr/local/bin:/opt/local/bin:/opt/local/sbin:/Library/Frameworks/Python.framework/Versions/Current/bin:/bin:/sbin:/usr/bin:/usr/sbin$

AFAICT there is no curl ahead of /opt/local/bin/curl in PATH:
kent $ ls /Users/kent/bin/curl
ls: /Users/kent/bin/curl: No such file or directory
kent $ ls /usr/local/bin/curl
ls: /usr/local/bin/curl: No such file or directory
kent $ ls /opt/local/bin/curl
/opt/local/bin/curl

This is on Mac OSX, if it matters.

Color me confused.
Kent
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Re: Lower power portable Linux

[Kent Johnson]

Ben Scott wrote:
>   A recent review[1] of the Asus Eee PC stated (paraphrased): Power
> management on Linux sucks.
> 
> [1] http://www.reghardware.co.uk/2007/11/16/review_asus_eee_pc/print.html
> 
>   Back when I looked into this (years ago), that was largely true.
> During active use, Linux was more power efficient vs Windows, but when
> the machine was fully idle, Linux did little to save even more power.
> Turning off the CRT was about it.  S3 (suspend-to-RAM) was often
> prevented by drivers.  S4 (suspend-to-disk) was experimental,
> unstable, and/or just plain didn't work.

 From the comments to the above:
http://www.reghardware.co.uk/2007/11/16/review_asus_eee_pc/comments/

The battery drain while sleeping issue that you had isn't some fault of 
Linux, it's just a configuration option that Asus set. There are 
multiple sleep modes in machines with ACPI - apparently they chose 
"suspend to RAM" which allows for extremely fast wakeups but uses some 
power rather than "suspend to disk" which takes longer to wake up but 
uses no power.

which at least implies that suspend-to-disk is available and works better.

Kent
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Re: LinkedIn (...small GNHLUG logos)

[Kent Johnson]

Ted Roche wrote:

> My government file is several inches thick

I'm curious -

What do you mean by "my government file" - surely there are many?

How do you know what is in it? I would think the interesting ones would 
be secret...

Kent
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Re: OLPC - Nov 12 launch

[Kent Johnson]

Ben Scott wrote:
> On 11/7/07, Tech Writer <[EMAIL PROTECTED]> wrote:
>> Has anyone gotten further information about the "Give 1 Get 1" program on
>> the One Laptop Per Child site?
> 
>   My dilemma is, do I go for the XO-1, the Classmate PC, the Eee, or
> something else I'm not yet aware of?  So many toys, so little time and
> money.

Good review of the Eee PC here:
http://www.notebookreview.com/default.asp?newsID=4055

Link to the "Tweak Guide" for how to install the GIMP with apt-get, an 
example of customizing the window manager, and pictures of a complete 
disassembly:
http://www.notebookreview.com/default.asp?newsId=4062

Kent
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Re: Computer dinosaurs

[Kent Johnson]

Sheesh. It's bad enough we have threads about "when I was a boy, we had 
to punch paper tapes by hand, uphill both ways!", now we have a 
meta-discussion about other people talking about the old days.

Sigh.

Kent

Shawn K. O'Shea wrote:
> Along the same lines, I actually have met the guy that owns this site
> (and most if not all the computers on said site)
> http://trailingedge.com/
> 
> -Shawn
> 
> On Nov 6, 2007 11:08 AM, Ted Roche <[EMAIL PROTECTED]> wrote:
>> It seems we all love to discuss our fond memories of computers long
>> past, so here's a photo album I think many will enjoy:
>>
>> "Gallery: Ancient Marvels Abound at Vintage Computer Festival"
>>
>> http://www.wired.com/gadgets/pcs/multimedia/2007/11/gallery_vintage_computers
>>
>>
>> --
>> Ted Roche
>> Ted Roche & Associates, LLC
>> http://www.tedroche.com
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Re: Presentation/slideshow apps (was: ... DNS and BIND)

[Kent Johnson]

Ben Scott wrote:
> On 10/24/07, Kent Johnson <[EMAIL PROTECTED]> wrote:
>>> P.S. You might take a look at Google Present if you've got a free Google
>>> Apps account. Similar in concept to S5.
>> OMG this is sweet! Imports .ppt files with styles! Looks like a winner.
> 
>   While Google does have some nice stuff... is problem if lose
> Internet connection, da?

Could be...I don't know if it allows export.

I was going to publish my current presentation as an example but looking 
it over I decided it is actually pretty weak, partly because the slide 
format really doesn't work very well for the material; maybe I will just 
rewrite it as an essay using reStructuredText and publish it on my web 
site :-) (which is available - to me - without an internet connection)

Kent
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Re: MonadLUG Notes, 12-Oct-1007: Ben Scott presents DNS and BIND

[Kent Johnson]

Ted Roche wrote:

> I would think an editor that "knows about" XHTML so that it creates the
>  when you create the  tag would help a lot. I mostly hand-code
> my HTML (I know, how last century!), so I'm used to it.

Me too, actually; maybe I'm making too big of a deal out of it.

> Failing this, perhaps OpenOffice.org Impress to develop the presentation
> and PDF output is second-best.

I have been uniformly un-Impressed with OO on Mac OSX. Writer is clunky, 
I have had problems interoperating with MS Word (and whatever you think 
of MS Word, sometimes that is a real requirement) and Calc is unusably 
slow even on a reasonably fast machine. Oh, and X11 doesn't integrate 
very well either. This is one reason I bought MS Office in the first 
place, it wasn't without some consideration of the alternatives. So I'm 
not that excited about trying Impress.

> But PowerPoint? PowerPoint kills, man. (Well, PowerPoint doesn't kill
> people. People using PowerPoint kill people. But, still...)

??

It doesn't help that I already have an older version of the presentation 
in PP...

> P.S. You might take a look at Google Present if you've got a free Google
> Apps account. Similar in concept to S5.

OMG this is sweet! Imports .ppt files with styles! Looks like a winner.

Kent
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Re: MonadLUG Notes, 12-Oct-1007: Ben Scott presents DNS and BIND

[Kent Johnson]

Ted Roche wrote:
> I took a look at the slides, because I know you had some troubles with
> the way the layout looked and behaved, and I felt bad for recommending
> S5 if it gave you so much trouble, and I think I found the source of
> some of those problems: the main slide file has to be XHTML 1.0 Strict,
> which is really, really finicky about how things work.

> (I *think* I got this right...) It's a pain in the neck to get code this
> way, and I use http://validator.w3.org to tell my when I've finally
> dotted every I and crossed every T, er, t.

So, is there a better way to author S5 than being really, really careful 
while writing XHTML by hand and using an XHTML validator a lot?

I'm thinking about using S5 for an upcoming MerriLUG presentation but if 
it is a pain to author I might just stick with PowerPoint (yeah, 
PowerPoint on Mac OSX for a presentation on FOSS software (Python) to a 
Linux UG, spare me the comments...)

Kent
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Re: Getting file sizes

[Kent Johnson]

Shawn K. O'Shea wrote:
>> du -c *.txt | tail -1
> 
> Since I know Kent has a Mac and this might be on his laptop, I'd like
> to add that this should really be:
> du -ck *.txt | tail -1

No, this is a bona fide Linux question :-) it's a Webfaction account. 
But thanks for the note!

Kent
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Re: Getting file sizes

[Kent Johnson]

Jim Kuzdrall wrote:
> On Monday 22 October 2007 09:11, Kent Johnson wrote:
>> How can I get the total size, in K, of all files in a directory that
>> match a pattern?
>>
>> For example, I have a dir with ~5000 files, I would like to know the
>> total size of the ~1000 files matching *.txt.
> 
> Ah!  Perhaps I actually know an answer to this one.  (Very rare) 
> 
> Go to directory of interest and try
> du -shc *.txt

That still lists each file individually, it needs to pipe to tail as 
Stephen suggested.

Kent
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Getting file sizes

[Kent Johnson]

Newbie question:

How can I get the total size, in K, of all files in a directory that 
match a pattern?

For example, I have a dir with ~5000 files, I would like to know the 
total size of the ~1000 files matching *.txt.

On RHEL and bash, if it matters...
Thanks,
Kent
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Re: [GNHLUG] MerriLUG Nashua, Thur 18 Oct, Putting LPs, tapes, 45s on digital media

[Kent Johnson]

A bit of followup:

First, a big thank you to Charlie for showing us how easy this is!

A few notes on my experience, having ripped two albums now.
- My hardware is a MacBook Pro, using the sound input port. Longest 
patch cable available at Radio Shack is 6' so I set the computer on top 
of the amp or sit beside the amp with the computer in my lap.

Ripping with Audacity is easy. I am having a much better experience with 
Audacity 1.3.3 beta than with 1.2.5. 1.2.5 seemed to leave behind some 
threads after applying an effect, it got sluggish very quickly.

The only filtering I am doing is noise removal and amplitude adjustment. 
Audio quality is better than expected, it sounds decent through earbuds 
or my external speakers.

The only labor-intensive part is breaking it up into tracks. I find the 
break, cut the dead space, add a label, on to the next. Maybe it will 
get faster as I get better at it.

Exporting to MP3 is pretty slow but I can do something else at the same 
time.

I export directly into the iTunes Music folder then use Add to 
Library... (*not* Import...) to tell iTunes about it.

It is very cool to be able to listen to these albums again.

Thanks again!
Kent

Jim Kuzdrall wrote:
> Who  : Charlie Farinella
> What : Convert old LPs and tapes to CDs
> Where: Martha's Exchange
> Day  : Thur 18 Oct **Next Week**
> Time : 6:00 PM for grub, 7:30 PM for discussion
> 
> :: Overview
> 
> Do you have groovy music on licorice pizza that you would like to 
> play in the car's CD player?  Did Granny find a cassette recording of 
> Auntie Irene playing Monster Mash on her accordion for your 5th 
> birthday party?  What about getting that stack of 45s into MP3?
> 
> Charlie Farinella presents a step-wise procedure which puts 
> priceless old analog recordings onto convenient digital storage 
> formats.  No memorization required!  Charlie has prepared the 
> instructions on a nice handout for you to take home.  
> 
> For extra measure, Charlie discusses splitting an LP side (or tape) 
> into individual tracks, noise and click reduction techniques, and an 
> introduction to some audio processing options.
> 
>  >>> RSVP to Jim Kuzdrall for dinner to assure adequate seating. <<<
>  !!! If you are not a "Regular Attendee" (50%), please let me know. !!!
> 
> Driving directions:
> http://wiki.gnhlug.org/twiki2/bin/view/Www/PlaceMarthasExchange
> 
> Thanks,
> 
> Jim Kuzdrall
> [EMAIL PROTECTED]
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Re: ack (was: a simple question about grep)

[Kent Johnson]

Bill Ricker wrote:

> The Andy and the "ack" project have built a better grep with perl.
> http://perladvent.pm.org/2006/5/
> search.cpan.org/~petdance/ack/ack
> petdance.com/ack/

Thank you again for pointing this out! I use ack several times a week, 
if not daily. It has saved me from having to learn/remember how to use 
'find' for which I am exceedingly grateful.

Kent
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Re: Books are dead thread: Bookpool features APress @ 50%

[Kent Johnson]

Ted Roche wrote:
> It could be desperation, or it could be fall cleaning, 

or even routine marketing...Bookpool regularly has sales on specific 
publishers, a couple of months ago it was Addison-Wesley and PH. But 
hey, why pick an ordinary explanation when there is a sensational one to 
be had :-)

Kent

> but BookPool is
> featuring Apress and "Friends of Ed" books at 50% this month
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[OT] xkcd

[Kent Johnson]

If you know what a SQL injection attack is, you will love this:
http://xkcd.com/327/

Kent
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Re: Monitoring memory use

[Kent Johnson]

Lloyd Kvam wrote:
> On Fri, 2007-09-21 at 09:44 -0400, Kent Johnson wrote:
>> I guess I can write this myself as a Python program that runs the 
>> desired program as a child process and monitors its memory usage by 
>> reading /proc//stats. There is also the Python library function 
>> resource.getrusage() but it doesn't seem to help - the ru_maxrss 
>> parameter is always 0.
> 
> The file status (/proc//status) provides labels for the data and
> would be easy to parse into a dictionary.

Um, yes, that is what I meant to write above.

> If you are tightly focused on memory, statm may be a better file to use
> than stats.  The second field is the RSS pages value.

Thanks

> You didn't specify which cron job caused the problem, but if it was
> from /etc/cron.daily, the different pieces get kicked off in series.  If
> you do not already know the culprit, that can complicate things a bit.  

I do know which job it is, it has its own crontab entry and the alert 
from WF includes individual processes.

Thanks everyone for the tips!

Kent
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Re: Monitoring memory use

[Kent Johnson]

Alex Hewitt wrote:
> On Fri, 2007-09-21 at 08:27 -0400, Kent Johnson wrote:
>> Is there some way I can 
>> wrap the cron job to log the memory used by the process?
> 
> One simple way 'ps aux | grep myjob'
> 
> If you loop on this and redirect the output to a file you can watch your
> program grow. There is also a memstat utility that may or may not be
> available on the system you are using.

I was hoping for a utility that would wrap the process in some way and 
report the high-water memory use of the process. Oh well...

I guess I can write this myself as a Python program that runs the 
desired program as a child process and monitors its memory usage by 
reading /proc//stats. There is also the Python library function 
resource.getrusage() but it doesn't seem to help - the ru_maxrss 
parameter is always 0.

Thanks,
Kent
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Monitoring memory use

[Kent Johnson]

How can I find out how much memory is used by a cron job?

Background:
I manage an account at WebFaction. It has a memory limit. I have a cron 
job that runs every night, it generally is not a problem, but last night 
it chewed up a ton of memory and triggered a limit alarm at WF.

I don't know how their alarms work so I don't know if this was an 
isolated event or if it is using a lot of memory every night and I just 
got caught last night. I would like to find out. Is there some way I can 
wrap the cron job to log the memory used by the process?

I think the server is running RHEL, don't know which version.

Thanks,
Kent
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Re: a simple question about grep

[Kent Johnson]

Bill Ricker wrote:
>>   Or, if you only have an old grep, but do have Perl, the following should 
>> work:
> 
> The Andy and the "ack" project have built a better grep with perl.

Cool. By default ack ignores plain text files, so you have to tell it to 
include them even when explicitly specifying the file. Here is an ack 
command that solves the OP's problem:

ack --text '^\*(?!INDICATOR)' myfile.txt

Kent
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Re: a simple question about grep

[Kent Johnson]

Tom Buskey wrote:
> 
> 
> On 9/6/07, *G.O.* <[EMAIL PROTECTED] > 
> wrote:
> 
> egrep "^\*[^INDICATOR]" filename.txt

That excludes lines beginning with * and any of the characters INDCATOR, 
i.e. *N, *D, etc will all be excluded.

> That didn't work for me, but this did:
> 
>egrep '^\*[^I][^N][^I][^D][^I][^C][^A][^T][^O][^R]' filename.txt

That will exclude a line that matches INDICATOR at any character, for 
example *aN

perhaps this:

egrep -P "^\*(?!INDICATOR)" filename.txt

Kent
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Re: cpp replaced by m4?

[Kent Johnson]

Mark E. Mallett wrote:
> That 'cog' hack looks interesting, although I am leery of such things
> that modify their own source files.  A similar hack is 'ptml' which also
> executes embedded python in templates and produces text output. 

Actually any of the myriad template languages that support unstructured 
text output (i.e. not limited to XML or some other strict format) should 
work as well. Many Python choices here, I imagine there are similar 
lists for perl, Ruby, etc.
http://wiki.python.org/moin/Templating

Kent
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Re: cpp replaced by m4?

[Kent Johnson]

Steven W. Orr wrote:
> On Tuesday, Jul 3rd 2007 at 12:18 -0400, quoth Kent Johnson:
> 
> =>Bill Sconce wrote:
> =>> Ah.  He wants Python...
> =>
> =>Cog lets you use Python as a code generator embedded in C or whatever:
> =>http://www.nedbatchelder.com/code/cog/index.html
> 
> BINGO! This is it! This is what we need. Thanks :-)

You actually did want Python! How about that :-)

Kent

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Re: cpp replaced by m4?

[Kent Johnson]

Bill Sconce wrote:
>> => Can we have an example of why you want to do this?
>>
>> Sure. For starters, one thing that we're looking to do:
>>
>> Loops.
>>
>> int *arr[]() = {
>> #for ii in l1 l2 l3 l4 etc
>> #do
>> func##cpp_eval(ii),
>> #done
>> };
> 
> 
> Ah.  He wants Python...

Cog lets you use Python as a code generator embedded in C or whatever:
http://www.nedbatchelder.com/code/cog/index.html

I think your example would look something like this:

int *arr[]() = {
/*[[[cog
import cog
for ii in 'l1 l2 l3 l4'.split():
 cog.outl('func%s,' % ii)
]]]*/
//[[[end]]]
 };

Kent
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Re: [Python-talk] Notes from PySIG, 24-May-2007

[Kent Johnson]

Ted Roche wrote:
> Thanks to Ric and Kent for their presentations, to Bill Sconce and Alex
> Hewitt for arranging the meeting and facilities, to the Amoskeag
> Business Incubator for their hospitality and to all who attended for
> their participation!

And thanks to Ted for his excellent summaries!

Kent
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Re: Really useful tool for people doing web development

[Kent Johnson]

Ted Roche wrote:

Kent Johnson wrote:


If you are doing any JavaScript development and you're not using Firebug
you should run, don't walk, to
http://www.getfirebug.com/


Or HTML or CSS. FireBug helped me track down a problem with HTML and CSS
which worked fine in "good" browsers but would fail to work in that ugly
proprietary browser that the customer insists we support. Thanks for the
tip, Kent!


Does Firebug work in ugly proprietary browsers? I thought it was 
Firefox-only.


Kent
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Re: Really useful tool for people doing web development

[Kent Johnson]

Dan Coutu wrote:

I recently found a really slick developer's toolbar for firefox that is
so immensely useful that I had to tell people about it.

You can find the download for it (open source of course) here:

http://chrispederick.com/work/webdeveloper/


If you are doing any JavaScript development and you're not using Firebug 
you should run, don't walk, to

http://www.getfirebug.com/

Kent
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Re: Warning: Explicative language involved

[Kent Johnson]

Jon 'maddog' Hall wrote:

A little of both.  FOSS products and services (commercial or
non-commercial) that exist today that just do something great.  Or
unique ways of doing things that "rocks your boat" (www.plutohome.com)


Django (a Python web framework) is f***ing amazing. It blows my mind how 
much functionality I can get with just a few lines of code.

http://www.djangoproject.com/

Kent
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Re: x86 emulator for PPC Mac OS X?

[Kent Johnson]

Paul Lussier wrote:

Does anyone know a virtual environment for the PPC-based Macs?  I have
a PowerBook G4 that I'd like to be able to play with some stuff on.
Specifically, I'd like to play around with a couple of the BSDs and
possibly some different Linux distros.


There is an Ubuntu distro that runs on PPC.

Kent
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Re: Linux hosting options, pros and cons

[Kent Johnson]

Paul Lussier wrote:

  What are you doing with svn?


RCS for source code.


Knowing how you use will probably tell me enough to figure out what's
going on.


I use it as a client both from home and from my WebFaction account (when 
logged in via ssh). Access is via https, the repository is at 
https://svn.xxx.webfactional.com. I use the command-line client and a 
couple of GUI clients. I can also view the repository directly from a 
browser using the same URL.


Kent

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Re: Linux hosting options, pros and cons

[Kent Johnson]

Paul Lussier wrote:

Kent Johnson <[EMAIL PROTECTED]> writes:


Trac and svn are running as CGIs behind Apache. I have access to the
app-specific config files but not the Apache instance that runs them.


What do you mean by this?  How is svn run as a CGI behind Apache?


My apologies. As I said, I am a linux novice. I actually don't know how 
svn is hosted. Django is definitely mod_python. I'm pretty sure Trac is 
CGI. I'm pretty sure svn is *not* hosted on my private Apache and does 
not have a process running under my user. I assumed that it was also CGI 
but I may well have been mistaken.


Kent
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Re: Linux hosting options, pros and cons

[Kent Johnson]

Christopher Schmidt wrote:

On Fri, Mar 09, 2007 at 06:28:29AM -0500, Kent Johnson wrote:

In my new job I am hosting a web site at WebFactional. I thought you
might be interested in some first impressions.


I believe webfaction -- which it looks like is the same thing as
webfactional -- is run by the same people as
python-hosting/python-hosted. 


Yes, you are right on both counts. WebFaction.com is the main site for 
the provider. My domain is a subdomain of webfactional.com (until our 
real domain name is hosted there which we have not done yet). And 
WebFaction used to be called python-hosting.com. It is run by Remi Delon 
who is the main developer behind CherryPy.


Kent
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Re: Linux hosting options, pros and cons

[Kent Johnson]

Ted Roche wrote:
A client with a database-backed LAMP application is considering moving 
to a new hosting provider for their system.  Surfing the web, they find 
all of these $6.95/month deals and can't figure out why anyone would pay 
more. I know there are a number of folks on the list who provide such 
services for themselves or their customers, and would welcome feedback, 
from what questions should be asked to what features we should be 
looking at. (I should explain "we" - I am the developer of the app, and 
an adequate sysadmin, and will likely end up installing, configuring and 
maintaining the system)


In my new job I am hosting a web site at WebFactional. I thought you
might be interested in some first impressions.

We are hosted at the Shared 1 level ($9.50 / month). At present I am
running a minimal Django app, a Trac site and a Subversion repository on
the site. I can ssh and rsync to the site.

Trac and svn are running as CGIs behind Apache. I have access to the
app-specific config files but not the Apache instance that runs them.

Django is running in mod_python behind a private instance of Apache that
AFAICT I control completely - I can edit the http.conf, restart the
server, etc. I have my own site-packages folder and my own Django
installation. It was painless to replace the stock Django (9.5.1
release) with the current svn trunk - just deleted the stock folder and
svn co the trunk.

As I understand it, there is a master Apache server that is the front
end. This server serves static files and forwards dynamic requests to my
owned server which runs mod_python and Django.

There are three running httpd processes. It seems like httpd +
mod_python + Django takes about 13-14MB. So with three instances running
I am bumping up against the 40MB memory limit. This is a very small site
at this point - basically a Django Admin interface to a single SQLite
table in a 250K database. So the Shared 1 plan is kind of marginal for
this. I am planning to upgrade to Shared 2 so I don't have to worry
about it.

I did bump over the memory limit a few days ago due to a memory leak
(mine), the response from WebFaction was to post a trouble ticket asking
me what I was going to do about it. So that is pretty gentle, they
didn't shut down the site or restart the server for me or anything
draconian.

Setup is pretty easy. Most of it is handled with a control panel that
lets you set up applications (Django, Trac, svn) and domains and link
them together. There are numerous screencasts to walk you through the
config. There is also a forum that answers a lot of questions and has
specific configuration tips.

I am a linux novice - I don't freak out when faced with a bash shell,
but I don't know how to configure Apache either. I have had a few times
when I have had to muddle through but mostly it has gone smoothly.

Support is by email. I have asked a couple of questions and received
replies within 24 hours. Not great turnaround but the answers were
accurate - in each case I was answered by Remi Delon who runs the site.

Can't answer about reliability yet, the site is new and not open to the
public.

Most of the rest of what you ask for below is available but I have not
had to use it.

Hardware is Dual Xeon 2.4 Ghz with 4 GB RAM. I seem to be sharing the
machine with about 80 other users at the moment.



Bandwidth: minimal. The system is a custom query application used by a 
small number of customers. Data is plain 'ol HTML with a few token 
branding graphics.


Yes, 200GB / month.


Basic software requirements:
Linux

Red Hat


Apache 2.x

Apache/2.0.52 (Red Hat) mod_python/3.2.8 Python/2.4.4

SSL   

Yes


PHP 4.3 or better with the ability to add PEAR modules

PHP is available, not sure which version. My experience with Django is
that I can add modules; my guess is it would be the same with PHP.


MySQL 4.1.19 or later or 5.1

Not sure which version, 5.something I think


ssh/scp access, preferably on a non-standard port

ssh/scp/sftp yes. Don't know about changing the port


rsync support

yes


ability to add custom cron jobs

yes though apparently cron can't send mail
http://forum.webfaction.com/viewtopic.php?id=2


outgoing email, a few a day.

Yes, my Trac instance is configured to send mail and that is working fine.


Storage: data is dinky, a couple of megabytes, HTML, CSS and .js files a 
few hundred K


Yes, 2GB on the Shared 1 plan.


Reliability: of course, clients expect web presence to work like 
dialtone: five 9's at no extra cost. A flaky ISP who blinks on and off 
is obviously undesirable, but the client is not going to pay for their 
own standby diesel generator, either. What's a realistic expectation, 
and how closely is it tied to "you get what you pay for?" In terms of 
mission-criticality, uptime is good, but going black during a natural 
disaster is not a deal-breaker, as long as the machine does a good 
shutdown and recovery.


Don't know yet. So far 100% uptime :-)


Security: Client requi

Re: Why are still not at 64 bits [was Can't figure out Firefox

[Kent Johnson]

Paul Lussier wrote:

"Ken D'Ambrosio" <[EMAIL PROTECTED]> writes:


1) 32-bit is "good enough," since the single largest impact it'll have on
most applications at this particular time is simply address space... and
most people are content with <4 GB at this particular juncture.


My question is "Why has this remained so for so long?" There's this
theory of "Build it and they will come".  We see this in so many other
market segments, why not here?  For example, buy a new file server
today with 1TB of useable space, doubling the amount of space you
already have, and within 6 months to a year, it'll be full.


Some thoughts on this topic by Eric Raymond here, in the broader context 
of "What will be the dominant 64-bit OS":

http://www.catb.org/~esr/writings/world-domination/world-domination-201.html

Kent


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Re: The new 'Linux Foundation'

[Kent Johnson]

Paul Lussier wrote:

Christopher Schmidt <[EMAIL PROTECTED]> writes:


On Thu, Feb 08, 2007 at 09:46:54AM -0500, Drew Van Zandt wrote:

I find the redhat httpd (and thus by extension the w3c naming)

Er, W3C? What relation does the W3C bear to Apache, or even webservers?


Errr, the webserver must spew-forth http, which is defined by the w3c?
(Just a guess here :)


Wrong guess. HTTP is an IETF standard defined by RFC:
HTTP 1.0: http://www.ietf.org/rfc/rfc1945.txt
HTTP 1.1 http://www.ietf.org/rfc/rfc2616.txt

HTML was originally specified by RFC also but modern HTML and XML are 
specified by W3C "Recommendations".


Kent

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Re: Linux hosting options, pros and cons

[Kent Johnson]

Travis Roy wrote:

 From what I've seen most of these >$10/month deals fail for some of  
your requirements.


I don't have experience with them myself, but from the information 
available on their website it seems WebFaction offers much more than you 
indicate below. For $9.50 a month (less if you pay by the year) you get 
the following (text is from their website):



SSL


I doubt you'll be able to find SSL for such low cost. Since most low  
cost webhosting is just shared virtual hosting. You can't do that  
with SSL. The few that do will only offer a shared site certificate  
and probably require you to use a less then ideal url to access  
secure pages.


SSL - Yes - If you want to use a trusted certificate (no popup) you'll 
need your own IP address which is charged at +$5/month.



PHP 4.3 or better with the ability to add PEAR modules



Ability to add any modules will probably be limited, if allowed at all.


From static HTML, PHP and CGI to Rails, Django, Turbogears and Plone, 
these plans let you run any software you want. You can even install your 
own custom software in your home directory


We provide PHP-5 with lots of modules (mysql, postgres, gd, zlib, curl, 
freetype, pspell, mbstring, xsl, ...).






MySQL 4.1.19 or later or 5.1


Again, if a shared webhosting company even has MySQL, it will  
probably be shared with other customers, and you'll most likely only  
get one DB.


MySql or PostgreSql databases   5






ssh/scp access, preferably on a non-standard port


Even with higher end webhosting, unless you own/rent the machine/ 
virtualserver you probably won't be able to do something on a non- 
standard port.


Full shell account with SSH and sFTP access Yes





ability to add custom cron jobs



With the low cost webhosting you'll be lucky to get a prompt.


Can I run cron jobs ?

Yes you can. Note however that if your cron jobs run too often or take 
too long to execute they will be considered as long-running processes 
and you will need to take this into account while choosing your plan.


Kent

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Re: Request for a Good Intro to Linux / UNIX

[Kent Johnson]

Andy Bair wrote:
Does anyone know of a good paper or website

focused on getting people started with Linux/UNIX?  You can assume that
the students have a fair amount of Windows background and (may be) some
familiarity with Linux.  Any suggestions would be appreciated b/c I just
don't have the time right now to google around.


The shell lectures here might be helpful:
http://www.swc.scipy.org/

Kent

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Re: Gimp and/or Blender tutorials for kids

[Kent Johnson]

Larry Cook wrote:
My 13 year old daughter would like to add things like dragons to her 
digital photos.  She would also like to do some animation.  She has no 
knowledge of what's involved, and neither do I which is why I'm asking. 
  Is anyone aware of tutorials for Gimp or Blender suitable for her age? 
  Are there other FOSS apps I should look into?


I was just prompted by this post:
http://radar.oreilly.com/archives/2007/01/why_johnny_cant.html

to take a quick look at Alice:
http://alice.org/

It looks like it is specifically targeted at making it easy for 
13-year-old girls to create animations. Mac and Windows only though.


Kent

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Re: impromptu web server using netcat

[Kent Johnson]

[EMAIL PROTECTED] wrote:

Hi, All...

Most of you are probably familiar with the ever useful TCP/IP utility
"netcat" (often /usr/bin/nc).  It's real handy for doing quick and
easy file transfers, or otherwise tossing bytes about on a network.
It runs on most variants of UNIX (including Linux) and there's even a
version for Win32.


If you have Python installed on the source machine, the single line
python -c "import SimpleHTTPServer; SimpleHTTPServer.test()"

will start a real web server on port 8000, serving static content from 
the directory tree rooted at the current working dir. The server 
includes support for directory listings and will set the correct 
content-type for many types of files.


Kent

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Re: [OT] From Texas to New Hampshire

[Kent Johnson]

R S wrote:
A few of the things that interest me most about New Hampshire are the 
local/state government, the 'Live free or die' motto, and the 
climate/terrain.  I'm big on cold, I hate the heat.  The tax status is 
quite attractive as well.  The warm welcome I'm receiving definitely 
helps. 


Keep an eye on property taxes though. Local governments in NH are funded 
primarily through local property taxes. The tax rate varies quite a bit 
from town to town.


Also if you live in NH and work in Mass you get hit twice - you pay NH 
property tax AND Mass income tax.


I like it here and I think the governments are generally pretty frugal, 
but schools, roads and police don't come for free.


Kent

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Re: XML quote Re: Meeting Notes: SLUG Mon 14 Nov - Google Earth and everything else

[Kent Johnson]

Paul Lussier wrote:


Is there anyway we could foster this into a real discussion on XML,
what it is, what it's used for, why it's
good/bad/evil/sucks-rocks/better-than-sliced-bread ?

About the only thing I know about XML is that it appears to be a
markup language for Pirate Treasure Maps (you know, X-marks-the-spot...
okay, sorry, not funny :)


As far as what it is, there is a huge amount of material available 
online to answer this. Here are a few starting places:

A Technical Introduction to XML
http://xml.com/pub/a/98/10/guide0.html

Many other articles on xml.com

Processing XML with Java - complete book available online, the first two 
chapters are general introduction to XML.

http://www.cafeconleche.org/books/xmljava/

Kent

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Re: Spam and mailing lists

[Kent Johnson]

Ben Scott wrote:

  Other ideas are also welcomed.  I know there are some other list
admins on this list, and plenty of mail exchanger administrators.


I am a moderator of the python-tutor mailing list. This is a subscribers 
only Mailman list where posts from non-subscribers are placed in the 
admin queue (your option 3). I only see a handful of spam a week come 
through to the admin interface. I don't know how this is done but 
obviously there is some kind of spam filter in place. I could try to 
find out more if you would like.


Kent

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Re: Two weeks from tonight - PySIG

[Kent Johnson]

Python wrote:

On Fri, 2006-10-13 at 12:34 -0400, Ben Scott wrote:

On 10/13/06, Bill Sconce <[EMAIL PROTECTED]> wrote:

And as my friend Kent Johnson promptly pointed out, no Pythonista ever need
make such a mistake:

  Not to belittle Python or anything, but cal(1) already does that.
The venerable "cal" is about as universal as any Unix utility gets,
and I daresay the Python function is clearly modeled on it.

  But hey, if you want to fire up Python for that, go right ahead... ;-)

-- Ben


Well, some of the Python folks are using a less advanced OS that omits
cal.  At least they have Python to fall back on.  (I don't think that's
Bill's excuse.)


And my original posting was to the PySIG list. But you can get cal for 
Windows too as part of GnuWin32 - you don't even have to run CygWin.


Kent

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Re: Hosstraders Fall 2006 - Mission Accomplished

[Kent Johnson]

Ben Scott wrote:


  In a similar vein, it has been established that Subaru is the
official vehicle of either GNHLUG, Hosstraders, or both.  I own one,
so does Mike Ledoux, so does Ted Roche, and Matt and Heather Brodeur
own two.  Meanwhile, Forresters were crawling around Hosstraders like
ants at a picnic.


Actually I think Subaru is the official vehicle of New Hampshire.

Kent

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Re: linux world inquiry about "access" for Linux

[Kent Johnson]

Python wrote:

While I was at the GNHLUG booth, a couple stopped by to ask about a
Linux equivalent to Microsoft Access.  We looked at the ooffice database
module, but I was not very successful in attempting to drive it.  No one
else at the booth then had any thing else to suggest.

I just installed rekall (2.4.3 onto Fedora 5) and was quickly able to
use it with a MySQL database.  It appears to offer a lot of the kinds of
things (queries, forms, reports, macros, scripts) that Access provides.
I don't know if rekall would satisfy someone with Access applications to
port to Linux, but it seems to be a step in that direction.


Some more suggestions in this message:
http://groups.google.com/group/comp.lang.python/msg/58423a015f850b1a

Kent

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Re: Looking for a recommendation for a recommendation.

[Kent Johnson]

Steven W. Orr wrote:
People ask a question for who's a good plumber and and lots of answers 
come back. Then someone asks for a good Italian restaraunt. Lots of 
responses. Then the plumber question rears its ugly head. I need a web 
interface for easily storing lists of recommendations for a variety of 
different things. Something better than text sould be nice.


Anyone know anything? (I expect to do better since I failed miserably at 
getting my last sendmail problem fixed.)


A wiki? I guess you're not in Boston, but if you are, maybe Angie's List?
http://www.angieslist.com/AngiesList/

Kent

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Re: web site change monitoring tool recommendations?

[Kent Johnson]

Kevin D. Clark wrote:

I am looking for a web site monitoring tool for
${extended_family_member}, who is just looking for something to help
monitor $N company websites for new job listings.


I use indeed.com. It monitors the major job boards (dice, monster, etc). 
According to the web site it also monitors some company sites.


You can save a search as an RSS feed so new listings show up in your 
favorite RSS aggregator. Clicking the link takes you to the original 
listing. I have a couple of feeds set up in Bloglines. It's pretty slick.


Kent

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Re: FOSS benefits the field of computer engineering (was: Malware "best practices")

[Kent Johnson]

Ben Scott wrote:

On 7/27/06, Jason Stephenson <[EMAIL PROTECTED]> wrote:
  

In the commercial realm of closed source
software most programmers only get to see the code of the project(s) to
which they are assigned. They never get to see much code that's better
or worse than what they are used to seeing.



  I think you've got a very good point there.  Not just the code,
either, but the whole experience.  Learning a FOSS project means you
have to learn the data structures and program flow of someone else's
code.  You get to appreciate the value of good design and good
comments/documentation, and/or see how hard the lack of same makes
picking up a project.  
All of this is true for a programmer coming in to an existing 
closed-source project as well.

You also get to see, first hand, how software
evolves over time, and the consequences of bad work.  You also see how
abuses and bad assumptions lead to software failures in the field.
  
Again, this is just learning from experience, it has nothing to do with 
FOSS specifically. Stick with a closed-source project  for a few release 
cycles and you will see the same thing.


The availability of open-source code and projects increases the 
opportunities to learn these lessons, but the lessons will be learned 
from experience whether the code is open or closed.


Kent



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Re: Replacement for Yahoo Domains

[Kent Johnson]

Paul Lussier wrote:
I'm not sure if this is what you mean, but DynDNS does "Custom DNS" too that 
lets you host whatever domain you want with them, not just subdomains 
attached to their freebie ones.


Is it free, or is it a pay-for service?


Pay-for. See their web site.

Kent

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Re: Replacement for Yahoo Domains

[Kent Johnson]

Neil Schelly wrote:
That's pretty expensive - have you looked at DynDNS.org?  They've got a lot of 
good services along those lines and they are very good at what they do.

-N


I'll look at DynDNS, it looks very promising. It is more expensive, 
though - CustomDNS + MailHop Forward Lite + domain registration is $70 / 
year vs $35 at Yahoo.


Thanks,
Kent



On Thursday 11 May 2006 11:27 am, Kent Johnson wrote:

Hi,

My domain kentsjohnson.com is currently hosted by Yahoo Small Business
Domains. They don't host the actual web site, they just register the
domain and maintain the DNS entry. Web site access and email are both
redirected to my ISP account which hosts the actual site and mail
servers that I use. For this service I pay $35 / year.

When it works, this is fine. Unfortunately the email forwarding is
unreliable. Currently mail to [EMAIL PROTECTED] is bouncing with a
delivery failure notice.

Can anyone recommend an inexpensive, reliable replacement for this
service? I don't need or want to pay for site hosting, I just need the
DNS registration and forwarding.

Thanks,
Kent

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Replacement for Yahoo Domains

[Kent Johnson]

Hi,

My domain kentsjohnson.com is currently hosted by Yahoo Small Business 
Domains. They don't host the actual web site, they just register the 
domain and maintain the DNS entry. Web site access and email are both 
redirected to my ISP account which hosts the actual site and mail 
servers that I use. For this service I pay $35 / year.


When it works, this is fine. Unfortunately the email forwarding is 
unreliable. Currently mail to [EMAIL PROTECTED] is bouncing with a 
delivery failure notice.


Can anyone recommend an inexpensive, reliable replacement for this 
service? I don't need or want to pay for site hosting, I just need the 
DNS registration and forwarding.


Thanks,
Kent

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Re: Intro to Python course

[Kent Johnson]

[EMAIL PROTECTED] wrote:

Hello

Are you going to use a specific textbook,
or Hankouts to follow along?


The textbook is Python for the absolute beginner
http://premierpressbooks.com/ptr_detail.cfm?group=Programming&isbn=1%2D59200%2D073%2D8

there will also be handouts and homework.



Assume python is resident on
most Linux distro's (?)


Resident or easily available


Is there such a thing as Python
for Windows?


Yes, Python runs on Linux, Unix, Windows 95 and up, MacOS (9 and X) and many 
other platforms
http://www.python.org/download/download_other.html


What size Class do you anticipate?


I hope to have 8-12 students.


Have you done this before?


Yes, last fall I taught the same class.

Kent


thanks

paulc






From:  <[EMAIL PROTECTED]>
Date: Fri Aug 26 08:00:55 CDT 2005
To: gnhlug-discuss@mail.gnhlug.org
Subject: Re: Intro to Python course




From: Kent Johnson <[EMAIL PROTECTED]>
Date: Fri Aug 26 08:00:55 CDT 2005
To: [EMAIL PROTECTED]
Subject: Intro to Python course



Hello all,

I will be teaching an introductory programming course using Python this fall. 
The course is oriented towards beginning programmers. It is offered through 
Merrimack (NH) Adult Education. It starts Sept 19, runs for 10 weeks and costs 
$120. Here is the course description:

Introduction to Programming with Python

Learn the basics of computer programming using the Python programming language. 
Python is an excellent first computer language - it is freely available, easy 
for beginners, powerful enough for professionals and fun! Python can be used 
for a wide variety of applications including utilities, web programming, 
graphics and games.

No previous computer programming experience is expected. Students must know how 
to use a computer. Some homework will be required.

To register, go to http://www.merrimack.k12.nh.us/adulted/adulted.htm and 
download the form.

Kent



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Intro to Python course

[Kent Johnson]

Hello all,

I will be teaching an introductory programming course using Python this fall. 
The course is oriented towards beginning programmers. It is offered through 
Merrimack (NH) Adult Education. It starts Sept 19, runs for 10 weeks and costs 
$120. Here is the course description:

Introduction to Programming with Python

Learn the basics of computer programming using the Python programming language. 
Python is an excellent first computer language - it is freely available, easy 
for beginners, powerful enough for professionals and fun! Python can be used 
for a wide variety of applications including utilities, web programming, 
graphics and games.

No previous computer programming experience is expected. Students must know how 
to use a computer. Some homework will be required.

To register, go to http://www.merrimack.k12.nh.us/adulted/adulted.htm and 
download the form.

Kent



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