currently i am learning UNIX shell programming:
so i would like to give a good links related to it
1 hour Tutorial : This is very good for start up ....
Teach Yourself Shell Programming in 24 Hours : ultimate book for studying... no need to search any other book and online resource,,, first learn it fully ,,,it will take normally 1 month to master..
but you can go to two more resource after 5 to 6 days for programming......
Advanced Bash-Scripting Guide
you will also find many good examples at....Richard's UNIX Shell Scripting Universe
as per my knowledge this is a good resource,,,, if you find a better one plz post comments here....