shell programming

shashi prakash · 09-06-2011, 06:52 AM

hey..i am interested in shell programming..what should i do and from where should i start ....???

Snark1994 · 09-06-2011, 06:55 AM

Google, or http://tldp.org/LDP/Bash-Beginners-Guide/html/ would be good starting places

David the H. · 09-06-2011, 02:20 PM

Here are a few useful bash scripting references:
http://mywiki.wooledge.org/BashGuide
http://www.linuxcommand.org/index.php
http://mywiki.wooledge.org/BashFAQ
http://mywiki.wooledge.org/BashPitfalls
http://tldp.org/LDP/Bash-Beginners-G...tml/index.html
http://www.tldp.org/LDP/abs/html/index.html
http://www.gnu.org/software/bash/manual/bashref.html
http://wiki.bash-hackers.org/start

Start with the first link and read it all the way through. It covers all the basic concepts.

You should also learn the basics of some of the various common scripting tools, particularly sed, awk and find.

Here are a few useful sed references.
http://www.grymoire.com/Unix/Sed.html
http://sed.sourceforge.net/sedfaq.html
http://sed.sourceforge.net/sed1line.txt

Here are a few useful awk references:
http://www.grymoire.com/Unix/Awk.html
http://www.gnu.org/software/gawk/man...ode/index.html
http://www.informatik.uni-hamburg.de.../gawk_toc.html
http://www.pement.org/awk/awk1line.txt
http://www.catonmat.net/blog/awk-one...ined-part-one/

Here are a couple of useful find references:
http://mywiki.wooledge.org/UsingFind
http://www.grymoire.com/Unix/Find.html

Finally, you're going to need to understand regular expressions if you want to do anything even remotely complex:
http://www.grymoire.com/Unix/Regular.html

sandwormusmc · 09-06-2011, 03:33 PM

Quote:

Originally Posted by shashi prakash

hey..i am interested in shell programming..what should i do and from where should i start ....???

Find (or create) a problem, then learn how to script it. A good one to start with is creating a script that automatically applies non-kernel patches every night or so and sends you an e-mail or text message to notify you that it has done it, along with good output.

Start with that, and if you run into trouble come on back and start asking (specific, hopefully) questions.

Good luck!

chrism01 · 09-06-2011, 06:00 PM

Read other people's qns here at LQ; see how other people solve them; try to solve them yourself.