Re: [Ilugc] OAOD (NetHogs)

[Arun Khan]

On Mon, Feb 21, 2011 at 1:14 AM, Dhastha  wrote:
> Application: NetHogs
>
> What it is:
>
> NetHogs is a small 'net top' tool. Instead of breaking the traffic
> down per protocol or per subnet, like most tools do, it groups
> bandwidth by process. NetHogs does not rely on a special kernel module

A nice complement  to "vnstat" and a must have in the Network/Sys
Admin tool set :)

BTW - it might be worthwhile categorizing the tools/apps into
"network", "host/system", "web app" as

-- Arun Khan
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Re: [Ilugc] Read Barcode

[Vijay Kumar B .]

Rajesh kumar  writes:

> 
> How can i read a barcode using a C program.
> 
> I can able to read barcode manually in a gedit.  i Need to create a c
> program which reads the barcode device and write the data to a text file.
> 
> How this can be done.

Input devices like keyboard, mice, etc. go through the input subsystem. And the
USB barcode reader in this case seems to act like a keyboard, and hence also
goes through the input subsystem. 

Each of these input devices has a device file named /dev/input/eventN. When the
device file is read, key events are reported. See
http://www.thelinuxdaily.com/2010/05/grab-raw-keyboard-input-from-event-device-node-devinputevent/
for an example. 

You will have to identify which /dev/input/eventN corresponds to your barcode
reader. This can be obtained from sysfs. Alternatively, there are aliases to
these device files, that make it more obvious. The aliases are present in
/dev/input/by-id/ 

Regards,
Vijay

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C: http://www.zilogic.com/

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Re: [Ilugc] [OT][Commercial] A World Cup game site

[openbala]

On Mon, Feb 21, 2011 at 12:44 AM, Shrinivasan T  wrote:
> Dear Bala,

>
> As a fellow LUGie, I expect to checkout the code from some repository,
> rather than mailing you for the code.
>
> Happy to explore the application but sad to see the unavailability of
> the code for public .
>
> Hope you open the code for public and help us to learn, reuse, share,
> modify the code.
>

Srini thanks,

This is deployed on Heroku and it is based on a git repository. So, I
can mirror/fork or host it in my github and share.

As Arun said, the API Id, key and secret are potentially abusable. In
fact, in my app I request for permission to post on their wall (to
inform that the results are out)
So, I've to hide those from the source code in the fork and show it
open. I shall do it soon. Thanks for the feedback.


> Thanks.
>
>
>
> --
> Regards,
> T.Shrinivasan
>
>
> My Life with GNU/Linux : http://goinggnu.wordpress.com
> Free/Open Source Jobs : http://fossjobs.in
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Re: [Ilugc] [Commercial] Efficient Frontier Chennai: Linux software developers required: Fresher to 5 years experience

[Gourav Shah]

Ganga,

you might want to post it on http://fossjobs.in/ as well.

Thanks
Gourav
> Hi,
>
> We at Efficient Frontier  (Chennai) are
> looking for software developers (fresher to 5 years experience) who are
> familiar with working in a linux environment. Please send me a resume
> off list if interested. Job description follows:
>
> Responsibilities:
>  * Take end to end ownership of critical pieces of our backend
> software infrastructure.
>  * Design, build and maintain our core services and modules.
>  * Primary programming language would be Python and in a Linux based
> environment
>  * Nature of the projects will call upon one's:
>  - system level understanding of software
>  - ability to handle a variety of programming languages and
> environments
>
> Required skills - all below expectations will be moderated against
> candidate's prior work experience:
>  * Familiarity with the linux environment
>  * Atleast a moderate level familiarity with using databases in projects
>  * Compulsory to have good knowledge / accomplishment in atleast one
> of the following areas:
>  - C programming
>  - Data structures, Algorithms
>  - Good achievement in programming contests etc.
>  - Contributions to existing open source projects (OR) Create a
> new open source project which has a sizable number of users
>  - Operating systems and system level projects
>
> Thanks,
> Gangadharan S. A.,
> Team Lead,
> Efficient Frontier
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[Ilugc] [Commercial] Efficient Frontier Chennai: Linux software developers required: Fresher to 5 years experience

[Gangadharan S. A.]

Hi,

We at Efficient Frontier  (Chennai) are
looking for software developers (fresher to 5 years experience) who are
familiar with working in a linux environment. Please send me a resume
off list if interested. Job description follows:

Responsibilities:
* Take end to end ownership of critical pieces of our backend
software infrastructure.
* Design, build and maintain our core services and modules.
* Primary programming language would be Python and in a Linux based
environment
* Nature of the projects will call upon one's:
- system level understanding of software
- ability to handle a variety of programming languages and
environments

Required skills - all below expectations will be moderated against
candidate's prior work experience:
* Familiarity with the linux environment
* Atleast a moderate level familiarity with using databases in projects
* Compulsory to have good knowledge / accomplishment in atleast one
of the following areas:
- C programming
- Data structures, Algorithms
- Good achievement in programming contests etc.
- Contributions to existing open source projects (OR) Create a
new open source project which has a sizable number of users
- Operating systems and system level projects

Thanks,
Gangadharan S. A.,
Team Lead,
Efficient Frontier
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Re: [Ilugc] Fwd: Doubts-Raid-Apache

[Kumaraswamy]

Dear Girish,

   Thank you very much!


-- 

Thank You,

R. Kumaraswamy
Email id:  kumarrksli...@gmail.com
Phone No.  +91 9944358860
My website 




On Mon, Feb 21, 2011 at 11:09 AM, Girish Venkatachalam <
girishvenkatacha...@gmail.com> wrote:

> On Mon, Feb 21, 2011 at 10:35 AM, Kumaraswamy 
> wrote:
> > Dear Team
> >
> >
> >  I have configured raid 5 with dedicated parity for example
> >
> >
> > 1.  In this scenario
> >
> >
> >  I have configured 3 hard disk( hda + hdb + hdc + hdd ) with raid 5
> >
>
> This is actually 4 disks(not 3). What am I missing?
>
> >   hdd is dedicated parity in the above
> >
> >
> >   In this case If i have problem in two hard disk
> >
> >
> >   i dont have any problem in parity hard disk (hdd)
> >
> >
> >  What would be happen i will loss the data or ..
>
> Data is stored equally in all the 3 hard disks but 2/3 alone is data.
>
> So even if any one disk crashes no data is lost.
>
> I normally don't get into this game. I simply use CCD mirroring and get
> done with it.
>
> RAID concepts are not worth the trouble for me at least.
>
> >
> >
> > 2. Apache
> >
> >
> >  In apache how to see the request queue  in command line
> >
>
> What request queue?
>
> Apache 1.x follows the preforked servers approach followed in UNIX.
>
> Apache 2.x started using threads. Either way web requests are handled
> quite fast and there is no way you can look at the queue.
>
> This is no mail queue.
>
> -Girish
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Re: [Ilugc] [OT][Commercial] A World Cup game site

[Arun Venkataswamy]

On Sun, Feb 20, 2011 at 10:04 AM, openbala wrote:

> P.P.P.S - I can give the source code to whoever is interested, please
> contact me offline.
>

Just a word of caution - Check, double check and re check what terms you
have signed up with Facebook when you got your developer and application
keys. Also, you should be extremely cautious about sharing code for a social
media based application. You are given access to the social graph through
the keys.


Regards,
Arun
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[Ilugc] to calculate time taken by process

[narendra babu]

Hello all ,
 
I have a Linux shell script which has many sql statements which are doing 
insertion into database sequentially .
 
to make it parallel running process , i have put them as background process and 
to calculate time i have used time command .
 
i get the times of all the sql statements inside the shell script 
 
for example inside i have statements like below  to run sql insertions 
time  sqlplus -s user1/pwdsafe  @a20 &
time  sqlplus -s user1/pwdsafe  @b20 &
time  sqlplus -s user1/pwdsafe  @c20 &
 
i am calculating time taken by each sql script by putting time command .
 
 
i would like to know how can i get the total cpu time  taken to execute all the 
statements .
 
is there anyway other time command to get the time taken by  each process to 
complete  .
 
 
Thanks in advance 
 
Thanks
Narendra

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Re: [Ilugc] Fwd: Doubts-Raid-Apache

[Girish Venkatachalam]

On Mon, Feb 21, 2011 at 10:35 AM, Kumaraswamy  wrote:
> Dear Team
>
>
>  I have configured raid 5 with dedicated parity for example
>
>
> 1.  In this scenario
>
>
>  I have configured 3 hard disk( hda + hdb + hdc + hdd ) with raid 5
>

This is actually 4 disks(not 3). What am I missing?

>   hdd is dedicated parity in the above
>
>
>   In this case If i have problem in two hard disk
>
>
>   i dont have any problem in parity hard disk (hdd)
>
>
>  What would be happen i will loss the data or ..

Data is stored equally in all the 3 hard disks but 2/3 alone is data.

So even if any one disk crashes no data is lost.

I normally don't get into this game. I simply use CCD mirroring and get
done with it.

RAID concepts are not worth the trouble for me at least.

>
>
> 2. Apache
>
>
>  In apache how to see the request queue  in command line
>

What request queue?

Apache 1.x follows the preforked servers approach followed in UNIX.

Apache 2.x started using threads. Either way web requests are handled
quite fast and there is no way you can look at the queue.

This is no mail queue.

-Girish
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[Ilugc] join

[siva kumar]

-- 
Regards with..
S.Sivakumar M.C.A., M.Phil.,
Lecturer
Department of Computer Applications,
A.V.C.College of Engineering,
Mannampandal,Mayiladuthurai-609305.

Resi :2 /66,Kovangudi,Maraiyur-Po
Mayiladuthurai-Tk
Nagappattinam-Dist
Tamilnadu,India.Pin:609806.
Cell: 94878 86069 ,88832 33802
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[Ilugc] Fwd: Doubts-Raid-Apache

[Kumaraswamy]

Dear Team


  I have configured raid 5 with dedicated parity for example


1.  In this scenario


  I have configured 3 hard disk( hda + hdb + hdc + hdd ) with raid 5


   hdd is dedicated parity in the above


   In this case If i have problem in two hard disk


   i dont have any problem in parity hard disk (hdd)


  What would be happen i will loss the data or ..



2. Apache


 In apache how to see the request queue  in command line



Could you explain

-- 

Thank You,

R. Kumaraswamy
Email id:  kumarrksli...@gmail.com
Phone No.  +91 9944358860
My website 
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Re: [Ilugc] traits of unix admin

[Arun Khan]

On Tue, Feb 15, 2011 at 10:07 AM, Raman.P  wrote:
> Link to a Nice article and discussion in slashdot about unix admin trait
>
> http://tech.slashdot.org/story/11/02/14/2357242/Common-Traits-of-the-Veteran-Unix-Admin

I suppose one could add a corollary to the vi  --  ed  the line
editor.  It was the only editor available on the administrative
console of a telecom switching product (back in the mid 1980s)

>
> Things about sudo seems to be interesting to me. Recently saw a ubuntu user 
> typing 'sudo ls' in his home directory.
>

ROTFL :)

-- Arun Khan
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[Ilugc] OAOD (NetHogs)

[Dhastha]

Application: NetHogs

What it is:

NetHogs is a small 'net top' tool. Instead of breaking the traffic
down per protocol or per subnet, like most tools do, it groups
bandwidth by process. NetHogs does not rely on a special kernel module
to be loaded. If there's suddenly a lot of network traffic, you can
fire up NetHogs and immediately see which PID is causing this. This
makes it easy to indentify programs that have gone wild and are
suddenly taking up your bandwidth.

Features:

It supports

* Shows TCP download- and upload-speed per process
* Supports both IPv4 and IPv6
* Supports both Ethernet and PPP

To know more about:

http://nethogs.sourceforge.net/

To install in Ubuntu:

Open a Terminal and type the following

$sudo apt-get install nethogs


For More help

$ man nethogs

-- 
Cheers,

Dhastha

A Kanchi Linux User

http://kanchilug.wordpress.com

My Works on Linux

http://dowithlinux.wordpress.com
http://dhastha.wordpress.com
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Re: [Ilugc] [OT][Commercial] A World Cup game site

[Shrinivasan T]

Dear Prasanna,

Thanks for your reply and the encouraging words for bala.
He deserves it.

I request you to read the mailing list guidelines here.
http://www.ilugc.in/content/mailinglist-guidelines

Following the guidelines will help us to improve the readability.

Avoid Top and Bottom Post.
Remove unwanted content in your replies.
Reply with proper Quotes.

These will improve the quality of your emails.

Wishes.

-- 
Regards,
T.Shrinivasan


My Life with GNU/Linux : http://goinggnu.wordpress.com
Free/Open Source Jobs : http://fossjobs.in
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Re: [Ilugc] [OT][Commercial] A World Cup game site

[Shrinivasan T]

Dear Bala,

> P.P.S. - I thought quite a lot before posting it in this forum, there
> is nothing obviously related to 'free software' on this - please
> consider this as a fellow LUG-gie's FYI.



> P.P.P.S - I can give the source code to whoever is interested, please
> contact me offline.

As a fellow LUGie, I expect to checkout the code from some repository,
rather than mailing you for the code.

Happy to explore the application but sad to see the unavailability of
the code for public .

Hope you open the code for public and help us to learn, reuse, share,
modify the code.

Thanks.



-- 
Regards,
T.Shrinivasan


My Life with GNU/Linux : http://goinggnu.wordpress.com
Free/Open Source Jobs : http://fossjobs.in
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Re: [Ilugc] [OT][Commercial] A World Cup game site

[Prasanna Venkadesh]

That site is really great superb creation... congrats. Nice work
done...

On Sun, Feb 20, 2011 at 10:04 AM, openbala wrote:

> All,
>
> I've a site created where the user chooses top 5 players per world cup
> match and based on the player's performance - the user gets points and
> ranked.
>
> The site is : http://rummy.openbala.com
>
> The site is developed on Ruby on Rails and deployed on Heroku.
>
> P.S. - Even though the subject says [Commercial], it has nothing to do
> with it. There are no ads. Only thing that you require is a facebook
> account.
> P.P.S. - I thought quite a lot before posting it in this forum, there
> is nothing obviously related to 'free software' on this - please
> consider this as a fellow LUG-gie's FYI.
> P.P.P.S - I can give the source code to whoever is interested, please
> contact me offline.
> P.P.P.P.S - This site is dedicated to all you cricket lovers.
>
> Thanks,
> Balaji
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Re: [Ilugc] KanchiLUG Weekly Meet

[Prasanna Venkadesh]

Great...Its an big event it seems

On Sun, Feb 20, 2011 at 8:48 AM, sanmugasundaram k wrote:

> Kanchi LUG Weekly Meet (80 ty):
>
> ...
>
> Time : Sun February 20 , 2011 (3.00 - 5.00 PM)
>
> Venue :Sri Narayana Guru School ,
> Near Ekambeshwarar Temple,
> Kanchipuram.
>
> Topic Discussion: Numpy
>
> Speaker : Mr.T.Arulalan.
>
> Welcome to all.
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[Ilugc] FDP in MIT, Chennai

[Raman.P]

Dear luggies

A four day Faculty Development Program was organised by Anna University, 
Chennai MIT Campus in association with ILUGC and MIT Computer Society. It was 
held from 16th to 19th of Feb 2010. The session was handled by our members

Shrinivasan.T  -Introduction,Package management, Virtualisation

Raman.P - perl, mysql, kernel compilation, installing software from source and 
FUSE

Shriram - Python

Prabhu - Gambas

Dhilip - GTk and Qt

Ravi Jaya - PHP

The course covered the FOSS Lab syllabus of Anna University, Chennai. About 40 
people participated. The session was conducted in the Lab with full hands on.

The preparation of the Lab, helping the participants in the Lab was done MIT 
students, under the banner of MIT Computer Society.

Ms.Catherine Bina, Head of the MIT Computing Centre was the main force behind 
this event. On behalf of ILUGC I thank her for the opportunity. I also thank 
the Management for this. 

Mr.Vignesh Nandakumar, head of the Computer Society of MIT along with his team 
did a marvellous job in organising the show. On behalf of ILUGC I thank him and 
his team for this.

I also thank our members who took the sessions.


Raman.P
blog:http://ramanchennai.wordpress.com/


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Re: [Ilugc] some more easy python books

[Ramkumar]

hi,
Thanks for these links...



On Sat, Feb 19, 2011 at 8:41 PM, Shrinivasan T wrote:

> Found these two books are very easy to learn python.
>
> http://www.briggs.net.nz/log/writing/snake-wrangling-for-kids/
> http://inventwithpython.com/
>
> Happy Learning.
>
> --
> Regards,
> T.Shrinivasan
>
>
> My Life with GNU/Linux : http://goinggnu.wordpress.com
> Free/Open Source Jobs : http://fossjobs.in
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>



-- 
Thanks,
Ramkumar
www.opennetguru.com
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