The Advanced Bash Scripting Guide is both a reference and a tutorial on shell scripting. This comprehensive book (the equivalent of 974 print pages) covers almost every aspect of shell scripting. It contains 364 profusely commented illustrative examples, a number of tables, and a cross-linked index/glossary. Not just a shell scripting tutorial, this book also provides an introduction to basic programming techniques, such as sorting and recursion. It is well suited for either individual study or classroom use. It covers Bash, up to and including version 4.0.
Download Advanced Bash Scripting Guide
http://www.tldp.org/LDP/abs/html/
http://bash.webofcrafts.net/abs-guide-6.1.tar.bz2
http://bash.webofcrafts.net/abs-guide.pdf
