Re: [Ilugc] which Linux distros are dying?

2008-07-02 Thread Ashok Gautham J.
On 7/3/08, benjamin <[EMAIL PROTECTED]> wrote:
>
>
> the article quotes this guy's theory "On the Web, If You're Not
> Growing, You're Dying"
>
> http://www.louisgray.com/live/2008/06/on-web-if-youre-not-growing-youre-dying.html


One linux distribution which is not even in the top 96 of the distrowatch
charts is Crux. But imho, it has a great set of users. I would choose crux
for source based systems and archlinux for binary systems.

Also Red Hat and Fedora are well established. IIT uses RHEL, Fedora and
Debian.. It is unlikely to switch to Ubuntu et al.

I believe no linux distro will die till it loses its last user

-- 
> Be yourself everyday, every way
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[Ilugc] which Linux distros are dying?

2008-07-02 Thread benjamin
Read:
http://codingexperiments.com/archives/149

the article use Google Trend to measure, during the period 2004 - 2008.
the article quotes this guy's theory "On the Web, If You're Not
Growing, You're Dying"
http://www.louisgray.com/live/2008/06/on-web-if-youre-not-growing-youre-dying.html

it shows Debian, Redhat, Fedora, Suse, OpenSuse,
Slackware  declining.

but Ubuntu grows a lot.

the last graph shows  the term ubuntu has become almost as
popular as Linux.

I did a Google Trend search with all of these "debian, redhat, fedora,
slackware, suse, opensuse , ubuntu"
http://www.google.com/trends?q=debian%2C+redhat%2C+fedora%2C+slackware%2C+suse%2C+opensuse+%2C+ubuntu&ctab=0&geo=all&date=all&sort=1

but Google Trend seems to have limitation of 5 terms.

In India  (at least per Google Trends), Red hat and Fedora rules.
http://www.google.com/trends?q=debian%2C+redhat%2C+ubuntu%2C+fedora%2C+suse&ctab=0&geo=all&date=all&sort=1

benjamin rualthanzauva
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Re: [Ilugc] Re: One Day One GNU/Linux Command (WALL)

2008-07-02 Thread Kapil Hari Paranjape
Hello,

On Wed, 02 Jul 2008, [EMAIL PROTECTED] wrote:

> In windows, there is a console utility called NET SEND, by which we can
> send messages to other users, computers, or messaging names on the local
> area network.

This is a much better explanation. It could have been written as
follows.

Lan Messenger::
In the Windows context the LAN consists of a number of
*single-user* desktop machines connected to each other
and possibly to some server machines and sharing resources in
various ways over the network.

In a Windows LAN one service available on the LAN is to send a
message to a specific collection of desktops. This is called
"Lan Messenger".

Since a typical Unix LAN is *not* structured as a collection of
single-user machines, such a service is typically not available in a
Unix LAN.

If you really need such a service it is not difficult to create it in
a Unix environment. For example, a shell script like
for host in $(ypcat hosts)
do
rexec $host wall < /tmp/msg &
done
This would require each user to have login access on every machine on
the network. This has associated security issues which can be solved
using ssh or Kerberos.

With multicast and broadcast networking one can think of a lot of more
interesting things. For example, see "whiteboard".

Services that are more "unixy" and already exist to provide similar
features are "IRC" and "talk".

Kapil.
--

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Re: [Ilugc] Re: One Day One GNU/Linux Command (WALL)

2008-07-02 Thread Raman.P
The commands relating to messaging users

shell based:
wall : all users
write : to specific user with optional specific tty
talk : two way chat

for X11
xmessage

Note: When in GUI, shell based tools will work normally only on those windows  
where shell is open. If no shell is open, no message will be received.

I remember in fvwm default days, some tool to trap such messages even if no 
shell is open. I forgot it name.

xmessage depends on xauth setting.

console messages depend on mesg setting
you can set accept/deny messages by using
$ mesg y/n

If mesg is globally set in /etc/bashrc it can be overwritten at command prompt 
by mesg command.

It is mesg y or mesg n not mesg off


Raman.P



  Did you know? You can CHAT without downloading messenger. Go to 
http://in.messenger.yahoo.com/webmessengerpromo.php/

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Re: [Ilugc] Re: One Day One GNU/Linux Command (WALL)

2008-07-02 Thread Aditya M
On Thu, Jul 3, 2008 at 10:11 AM,  <[EMAIL PROTECTED]> wrote:
>>"write" can be used. But it does send messages on different computers. It is
> for users on the same system but different terminals.
> --
> Aditya Manthramurthy
> B. Tech, CSE NIT Trichy
> -
>
> Thank you, Aditya Manthramurthy !!!
>
> I tried write command
>
> like $ write verman
> there was a error saying "write: verman is not logged in"
>
> can you give me some examples on write.
>

Well if the user if logged in and that too has an active terminal,
when you use the command, the text will appear on his/her terminal.

See "man write". It won't work across different computers if they are
not part of the same system. This means that it will work as you
expect it to, only if users are present on different terminals and
logged on to the same server. In my experience, such setups are rarer
than they used to be. You can open a terminal and try sending a
message to yourself, to get a feel of how this will work.
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Re: [Ilugc] Re: One Day One GNU/Linux Command (WALL)

2008-07-02 Thread msverman
>"write" can be used. But it does send messages on different computers. It is
for users on the same system but different terminals.
--
Aditya Manthramurthy
B. Tech, CSE NIT Trichy
-

Thank you, Aditya Manthramurthy !!!

I tried write command

like $ write verman
there was a error saying "write: verman is not logged in"

can you give me some examples on write.

thanks,

Verman

---

What is this?  At least give a 2 line description of what it does to
give us an idea what you are looking for.  Don't assume everyone knows
lan messenger.

--
Arun Khan


Greetings Arun Khan !!!

I thought that everyone know about LAN (Local Area Network), but without
knowing "LAN" there is no use of learning "wall" command.

since you don't know what is LAN, I can explain you.

LAN means "Local Area Network".

Messenger means "messaging program, designed for use within a single local
area network".

In windows, there is a console utility called NET SEND, by which we can
send messages to other users, computers, or messaging names on the local
area network.

eg. c:\>net send 10.0.0.10 Happy birthday to you
the message sucessfully send to 10.0.0.10

Here "Happy birthday to you" is the message and 10.0.0.10 is the
IP-address of my friend.

Likewise, Is there is any command in linux.


With "wall" we can send a message to everybody in the LAN.

my question,Is there is command in GNU/Linux where I can send messages to
a particular user or hostname.

Here user referred to "user working in the computer" or hostname referred
to the "computer name".


Can you tell me the GNU/Linux command, where I can send messages to a
particular user or hostname?


-
> Is there any command to send messages to a particular user or
> > hostname.

user - email?
host - rexec?


what do you mean by email? & rexec?

At least give a 2 line description, what does it mean?

thanks,

Verman

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Re: [Ilugc] One Day One GNU/Linux Command (WALL)

2008-07-02 Thread Arun Khan
On Thursday 03 Jul 2008, Ashok Gautham J. wrote:

> Just two days back, we were asked to practice some shell commands in
> the OS lab..
> There was a guy who did a wall help!
> The teacher sent him outta the class.. She could have done much
> better by doing a 'mesg off' in /etc/bashrc
> (All our .bashrc's automatically include that in)

Or the teacher could have told him nicely to use such tools with care, 
explain the ramifications of such action but sending him out of the 
class gives a wrong message IMO.

How will the student learn if s/he is not allowed to experiment?

-- 
Arun Khan

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Re: [Ilugc] One Day One GNU/Linux Command (WALL)

2008-07-02 Thread Ashok Gautham J.
On Wed, Jul 2, 2008 at 9:37 AM, Bharathi Subramanian <
[EMAIL PROTECTED]> wrote:

> One Day One GNU/Linux Command
> =
>
> wall -- Send a message to everybody's terminal.
>
> Summary :
>
> Wall sends a message to everybody logged. The length of the message is
> limited to 20 lines. You MAY need root permission, on some system, to
> run this command. This command is used to pass the some critical
> information to all.
>
> Lol...
Just two days back, we were asked to practice some shell commands in the OS
lab..
There was a guy who did a wall help!
The teacher sent him outta the class.. She could have done much better by
doing a 'mesg off' in /etc/bashrc
(All our .bashrc's automatically include that in)
-- 
Be yourself everyday, every way
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Re: Google vs MS (Was Re: [Ilugc] Google vs Yahoo, again!)

2008-07-02 Thread Venkatraman S
On Wed, Jul 2, 2008 at 1:54 PM, Suraj Kumar <[EMAIL PROTECTED]> wrote:

>
> Extracting and storing an RSS feed into a database is a very similar
> question too. It has quite a few elements that can be optimised and
> they were just testing your design, data structure and approach, IMO.
> Imagine, you have a billion RSS feeds to process, wouldn't you have to
> think differently about how you'll do trivial things such as sorting
> or defining your database schema? Would you even be able to run a
> single database instance? ... and how are you going to be
> fault-tolerant?
>

Am sorry for i havent replied to the bulk of the email - i felt asleep..i
got blinded. Suddenly i woke up and saw some references to 'you' and since
the previous email was mine - then i presume 'you is me' :P

I guess you didnt read the Q properly : storing the fields in a Mysql
table(as in 'desc tablename')  is different from creating a format(read
'Data structure') in which lookups are faster and is also feasible on the
space(we learnt it in college as 'Time/Space complexity').

On second thoughts, probably you are right, probably the interviewee should
have anticipated the Qs that 'desc tablename' will lead to 'design a custom
rdbms'.

beers,
Venkat
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Re: [Ilugc] ILUGC in wikipedia

2008-07-02 Thread Anoop John
> On 01-Jul-08, at 4:18 PM, Anoop John wrote:
> the attitude of respecting wikipedia for what it is and not using it as a
> medium to advertise self and one's organisations

OK, I was confused about the context but now I got it.
Cheers
Anoop


-- 

http://www.zyxware.com
http://www.anoopjohn.com
http://www.thondomraughts.com

"Be the change you wish to see in the world", M. K. Gandhi

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Re: [Ilugc] to start iilugc in sri krishna college of engg & tech coimbator

2008-07-02 Thread senthilraja P
/** i am sathis kumar systems manager  for sri krishna college of engg &
tech
, coimbatore. our college interested in using open source software. Now we
are in the process of setting up separate open source lab and open source
wireless lab. our management and principal intrested to start INDIAN LINUX
USER GROUP IN OUR College. so please reply the procedures to start the forum
**/

Sathish,

This is really a great news that some one from colleges is taking the
initiative.

However, you havent specified your requirements exactly.  What are the areas
you want to use open source software?

I am lobbying my sister to implement mail server, webserver in her college
(kumarasamy college, karur), which she also agreed.
I have also canvassed a couple of students in Mahendra college to implement
the same there..

I feel, it is the simple starting of some serious opensource technologies at
the college level.

My proposal is that can we form a network of college professors, to share
and diverse open source knowledge and skill sets?

Regards,
senthil Raja
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Re: Google vs MS (Was Re: [Ilugc] Google vs Yahoo, again!)

2008-07-02 Thread Sujith
Suraj Kumar wrote:
 > On Tue, Jul 1, 2008 at 8:08 PM, Venkatraman S <[EMAIL PROTECTED]> wrote:
 > I'll try to not look like I'm speaking as a Yahoo! employee here :)
 > Instead, I shall merely try to explain why the notion of 'monopoly' is
 > a common running thread across all stock-market driven companies such
 > as Google or Yahoo! or Microsoft. I'll try and elaborate why its not
 > really in the companies hands to be pure of heart given the conficting
 > drive to make profits.  and interestingly, even a seemingly altrusitic
 > thing such as releasing "really cool" FOSS tool. The motive is the
 > same. The approach, different.
 > 

[snip]

That was one awesome, unholy rant. :)

Sujith
-- 
http://sujith-m.blogspot.com
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Re: [Ilugc] Re: One Day One GNU/Linux Command (WALL) (Bharathi Subramanian)

2008-07-02 Thread Arun Khan
On Wednesday 02 Jul 2008, [EMAIL PROTECTED] wrote:
> wall -- Send a message to everybody's terminal.

Traditional used by sys admins to announce actions that will impact the 
logged in users e.g. system maintenance.

> --
>
> Is there any command to send messages to a particular user or
> hostname.

user - email?
host - rexec?

> like lan messenger

What is this?  At least give a 2 line description of what it does to 
give us an idea what you are looking for.  Don't assume everyone knows 
lan messenger.

-- 
Arun Khan

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Re: Google vs MS (Was Re: [Ilugc] Google vs Yahoo, again!)

2008-07-02 Thread Suraj Kumar
On Tue, Jul 1, 2008 at 8:08 PM, Venkatraman S <[EMAIL PROTECTED]> wrote:
> I do not consider Y! here - am always confused whether they are a media
> company or a tech company! btw...i happen to know of an instance wherein in
> one of the Y! interviews(for their search team) - the interviewer ended up
> asking the interviewee about the fields in the RSS feed :P and asked how the
> individual fields that can be stored in a MySQL table.

I'll try to not look like I'm speaking as a Yahoo! employee here :)
Instead, I shall merely try to explain why the notion of 'monopoly' is
a common running thread across all stock-market driven companies such
as Google or Yahoo! or Microsoft. I'll try and elaborate why its not
really in the companies hands to be pure of heart given the conficting
drive to make profits.  and interestingly, even a seemingly altrusitic
thing such as releasing "really cool" FOSS tool. The motive is the
same. The approach, different.

You gotta understand one thing: End of the day, both Yahoo! and Google
are companies into which the market has invested money and they need
to make 'profits' against the money invested. Don't make profits,
nobody wants to invest in you. Emotional affectives such as freedom to
the world do always take a back seat because the investors don't shake
a leg about such affectives. Doesn't matter whether its a Google or a
Microsoft or a Yahoo!. What differs amongst these is how they intend
to make the money. However,  there is clearly nothing different in
what they all want to do: to gain an exclusive market space and keep
making money in such a way that its difficult for competitors to take
away your market share.

Microsoft's strategies has been the three Es (Embrace, Extend,
Extinguish (see wikipedia for details)). Google's strategy has been to
provide a free-value network to people while making that a marketplace
for advertisers to show their ads. Yahoo! had created a marketplace
for itself by making itself the number one destination on the internet
(yes, even today, Yahoo.com is the most visited website on the
planet). People (especially those of the US) visit Yahoo! because
that's where their tidbits of their daily lives come from - Mail,
News, Photos, bookmarks, media sharing and so on. Yahoo! had
traditionally been making money pretty well by displaying
advertisements on these 'destinations'. We all know about how
advertising drives up sales and so on. While traditional advertising
is all about registering a brand in the observer's mind, a significant
portion of advertising is also to find out the user's intent. While
each Yahoo! destination went the way of mining the user's data and
using it to deliver relevant ads, Google's strategy was quite
different - they ended up asking the user to provide his intention
into a search box. That's where, things took a big turn in how the
internet advertising industry evolved. Soon advertisers saw the great
potential of search based advertising and Google became a one-hit
wonder.

So, its all about the advertisements in the end. Google does it by
some ways. Yahoo! uses some other... and there are lot of overlaps
between the two too. Now, both have figured, being destinations isn't
the way they are going to grow further and that being good with
interoperability is the way to go. Google allows folks to access their
data through APIs. Yahoo! also has APIs to a lot of it's services
(del.icio.us, flickr, maps... and I'm sure you heard about Search
Monkey :) ). Besides APIs, I can say with certainity, amongst google
and Yahoo!, Yahoo! has released quite a lot of pretty interesting open
source software. The first that comes to my mind is Hadoop and all the
work around hadoop (pig, etc.,.)... and for the common netizen, YUI,
Yahoo!'s contributions to mysql and even the FreeBSD project. Compare
this to the 'funding' by Google to the Mozilla project. IMO, it is
merely a distribution 'deal' (ie.,. to have google as the default
search engine) than a funding per-se. You see, I'm not saying Google
is evil. I'm saying, even if google's pure-hearted intention was to
fund the Mozilla project, they wouldn't have been able to do it
without explaining to their investors why they want to give away that
money. Becoming the default search engine on Mozilla is their answer
to the investors.

Finally, I'd like to throw some perspective about the 'question' you
were asked in your interview. Before I joined Yahoo!, I worked for an
embedded systems company. The challenges there are quite different:
It's about being memory efficient and the data one deals with is
typically small. For instance, one of my interview questions was to
write a program to extract common words between two files. My initial
answer was a technically working answer. But the moment my interviewer
asked me "What if there were a million words in both the files?", I
had to rethink my program because now we are talking a completely
different scale and the problem has morphed into a new one.

Re: [Ilugc] Re: One Day One GNU/Linux Command (WALL) (Bharathi Subramanian)

2008-07-02 Thread Aditya M
On Wed, Jul 2, 2008 at 12:33 PM, <[EMAIL PROTECTED]> wrote:

> wall -- Send a message to everybody's terminal.
>
> Summary :
>
> Wall sends a message to everybody logged. The length of the message is
> limited to 20 lines. You MAY need root permission, on some system, to
> run this command. This command is used to pass the some critical
> information to all.
>
> --
>
> Is there any command to send messages to a particular user or hostname.


"write" can be used. But it does send messages on different computers. It is
for users on the same system but different terminals.


-- 
Aditya Manthramurthy
B. Tech, CSE NIT Trichy
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[Ilugc] Re: One Day One GNU/Linux Command (WALL) (Bharathi Subramanian)

2008-07-02 Thread msverman
wall -- Send a message to everybody's terminal.

Summary :

Wall sends a message to everybody logged. The length of the message is
limited to 20 lines. You MAY need root permission, on some system, to
run this command. This command is used to pass the some critical
information to all.

--

Is there any command to send messages to a particular user or hostname.

like lan messenger

thanks,

Verman


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