LinuxGazette.net: Bash Shell and Beyond

“In this monthly series, I will try to expose the power of the
Bash shell. In particular, the readers will be introduced to
Bash.Diff which is a collection of my patches incorporating many
ideas from Ksh, Zsh, Awk, Python, and other languages.

“Each article will focus on one theme or feature, which is not
normally thought of in shell context. I will also make liberal use
of shell functions, standard builtins, dynamically loadable
builtins, and advanced features patched into Bash, in a format that
can be easily sourced and maintained…”