Coherent PDF Command Line Tools is a set of professional command line tools for manipulating PDF files. Split, merge, linearize, scale, rotate, crop, encrypt, decrypt, watermark, bookmark, annotate, attach, impose, etc. A full manual is provided.
A GNU/Linux rescue CD that comes with Rescapp, a nice wizard that will guide you through your rescue tasks.
A tool for documenting which MQ components are installed and active on a particular server.