sed tutorial and help

A very nice turorial and help <a href="http://sed.sourceforge.net/grabbag/tutorials/">here.

shotwell- Photo organizer for Linux in Gnome

Here is description of shotwell:

Shotwell is a new <a class="zem_slink freebase/en/open_source" title="Open Source" rel="wikinvest" href="http://www.wikinvest.com/concept/Open_Source">open source photo organizer designed for the <a class="zem_slink freebase/en/gnome" title="GNOME" rel="homepage" href="http://www.gnome.org/">GNOME <a class="zem_slink freebase/en/desktop_environment" title="Desktop environment" rel="wikipedia" href="http://en.wikipedia.org/wiki/Desktop_environment">desktop environment. It allows you to import photos from your camera, view and edit them, and share them with others.

Link to shotwell:

<a href="http://www.yorba.org/shotwell/" target="_blank">http://www.yorba.org/shotwell/

Here are some <a class="zem_slink freebase/en/screenshot" title="Screenshot" rel="wikipedia" href="http://en.wikipedia.org/wiki/Screenshot">screenshots from the application.

Get a lot of spam — use spamassasin.

If you get a lot of spam into your local inbox and do not want your service provider to filter them for you, like me :), then you can use spamassasin.

The benefit with this approach is that all the spam will be delivered to your local inbox and you do not need to do anything on the server. You can blacklist, whitelist, report message as spam all on your client and it would not change anything on the server. So you control your mail, isn&#8217;t that great. What to do, start with minimal things:

Perl script to create csv files with a pattern – Generic script.

I was having a really bad day and needed a quick solution to create some csv files. And this I needed to do for multiple data kinds and patterns, so I created this small script to do the job for me…

#Number of rows required in the output.

$rows = 100;

#The config and the output file

open (CF_FILE, &#8221;<Config.test&#8221;);
open (OUT_FILE, &#8221;>test.csv&#8221;);

#—————————————————————————
# No need to change anything below this.
#—————————————————————————

Continue reading

Useful link for grep

<a href="http://lifehacker.com/398441/get-to-know-grep">http://lifehacker.com/398441/get-to-know-grep

whohas

Description: whohas is a command line tool that allows querying several package lists at once – currently supported are Arch, Debian, Gentoo and Slackware. whohas is written in Perl and was designed to help  package maintainers find ebuilds, pkgbuilds and similar package definitions from other distributions to learn from.

Example output for

Viewing log files without using vi or any other text editor

This is quite useful for viewing files without opening them.. Saves quite a lot of time in viewing the logs 🙂

Want to see the first 5 lines of the /etc/passwd file? Pretty easy, just use the "head" command:

head -5 /etc/passwd

Want to see the last 20 lines of the /etc/passwd file? Again, pretty easy, just use the "tail" command:

tail -20 /etc/passwd

But what if you only want to see lines 10-15 of a given file? Neither the "head" nor the "tail" commands alone will do. Instead, use the "sed" command to print the range of lines you want to see: