"xmlsh" is derived from the design and goals the unix shell and core commands but with XML expressions and documents added as core features to the shell. xmlsh can be used as a drop-in replacement for scripting xml transformations instead of sh.
The Bash Programming Environment (BPE) is a set of useful shell/CGI scripting functions for the GNU Bash shell. Each group of functions is sorted into a separate library. Libraries include a hashmap, MySQL API, XML Parsing, CGI manipulation & more.