XSH is a powerfull command-line XML editing tool/programming language
in the manner of Unix shell interpreters and line-oriented text editors
like ed which can be used either interactively or for batch-mode
XML processing.
TeXas assists the building process of LaTeX files and provides useful scripted features. It mainly acts as an automated build system. TeXbooklet creates booklets out of LaTeX files while TeXlayout creates a LaTeX file with a standard layout in it.