Linux Shell Scripting Tutorial A Beginner’s handbook

Most of the other tutorials on Linux shell scripting are either too basic or skip too many important intermediate steps. The concept of this tutorial is to maintain a balance between these two. It covers many of the real life examples of shell scripting that are missing from many other tutorials.

http://www.cyberciti.biz/nixcraft/linux/docs/uniqlinuxfeatures/lsst/