Advanced Bash-Scripting Guide

[nwco...@gmail.com]

This tutorial assumes no previous knowledge of scripting or
programming, but progresses rapidly toward an intermediate/advanced
level of instruction . . . all the while sneaking in little snippets of
UNIX® wisdom and lore. It serves as a textbook, a manual for
self-study, and a reference and source of knowledge on shell scripting
techniques. The exercises and heavily-commented examples invite active
reader participation, under the premise that the only way to really
learn scripting is to write scripts.

http://howtos.linux.com/guides/abs-guide/