Bash script examples

[imported_vvpalin]

I have come to the conclusion that i learn MUCH better by looking at others work rather than reading an article that just says this does this and that does that. I also obviously learn allot better if im interested in a certain subject as i think we all do.

So im wondering is there a good site out there that has a collection of scripts i can take a look at. I'd prefer them to be security related as ill pick up on things quicker since thats what my focus is. However i really dont mind if there not.

I seem to remember seeing a link posted in the forum of a very nice site with a ton of scripts but sadly im unable to find it and google isnt being much of a help.

Im also open to suggestions of a forum or message board thats friendly to n00bs i can go to as this really isnt the place to be making 20 threads asking questions.

Thanks for the help.

[Archangel-Amael]

Man google gave me 731,000 hits with "bash scripting examples"

Since I know that you are adept at using google, I would suggest
the ibm link bash by example, the linuxconfiwiki link
Also go back to that other thread on books, and have a look for bash scripting books offered by pureh@te ( I believe).

Also as far as security programs go just go to the program and open it up with your favorite editor and have a look at. You could even take one of the simpler ones make a copy of it and set it to run from a different directory and then play with the code.
netdiscover is a really simple program in this dept.

As for forums there are some that are more noob tolerable but they may not give answers to "hacking/pentest" type questions. Or info on the tools.
One such is http://www.linuxquestions.org/

www.unix.com is another.

[purehate]

When I was learning bash one of the guys on our Backtrack team jabra showed me this tool he wrote. Download the source and check it out. Its a insanely long script and there are perfect examples of almost every kind of thing you could hope for. Its a excellent example.

http://getwifi.sourceforge.net/download.html

And as already said http://www.amazon.com/Linux-Command-...2679180&sr=8-1

Is the best bash book I have ever read. I didnt even know bash had fuctions until I read this. Also here is the source for my wpa crack script if that would help..

http://pastie.org/482040

I do understand how sometimes taking 4 or 5 other scripts and making your own is easier and more fun than examples in a book.

[Thorn]

Wicked Cool Shell Scripts is another good book for learning how to script in Bash.

[imported_cybrsnpr]

vvpalin; I've got about a dozen bash and perl scripts HERE that I wrote. I'm like you, I learn better by looking at what others have done and then figure out how to modify it for my own purposes.

My personal theory: There has been only 1 original piece of code: hello world. Everything else has been a cut-n-paste modification of it!

[imported_wyze]

Wicked Cool Shell Scripts is another good book for learning how to script in Bash.

I own it, but to me it's definitely not for n00bs. Very good resource for intermediate bash'ers though.

[Thorn]

I own it, but to me it's definitely not for n00bs. Very good resource for intermediate bash'ers though.

Good point, if you're new to Bash, you should probably have a solid grounding in a structured language to pick up on the scripts in WCSS. On the other hand, if you're looking to see how someone else has tackled some complicated ideas using Bash, it's a great reference and learning tool.

[Relentless]

[quote=pureh@te;133484]When I was learning bash one of the guys on our Backtrack team jabra showed me this tool he wrote.[end quote].

I was just wondering how much time did it take to master bash scripting?

I know that it can be a variable depended on the time of input and time allotted by a given individual; however, I just wanted to know how long it took pureh@te and the others, and if you used multiple books or just one book or only the listed books in this thread.

It's also interesting to note that I also enjoy jumping into the code and getting hands dirty when learning a new language it is more fun than reading a million books on the theory behind a language I guess the best way to learn is the practical approach and when baffled by a piece of code- start referencing the theory or books to find solutions or the rules for a given language.

So the next question would be what is best book with examples and solutions that one can follow by.

[Archangel-Amael]

Here area a couple more free resources that may be of help.
Bash programming basics.
http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO.html
Advanced Bash-scripting guide
http://tldp.org/LDP/abs/html/
tldp or The Linux Documentation Project has lots of good resources
While a lot of it may be old in terms of dating, it is still mostly relevant and useful.
Bash scripting tutorial from Linux Config
http://www.linuxconfig.org/Bash_scripting_Tutorial
A quick overview or reference page
http://linuxhelp.blogspot.com/2005/1...ash-shell.html
A bash scripting cheat sheet
http://linux-sxs.org/programming/bashcheat.html
Another with examples
http://www.patchshorts.com/cheatsheets/bash

[imported_vvpalin]

Before i fall asleep can i ask a big favor ... Im probably going to write a firefox update script tomorrow and i was wondering how you could match a givin text string in a file and replace it with whatever you need. Im sure it will support wildcards so i really neednot ask but thats a must.

Thanks a bunch.