unix

Some miscellaneous tips and tricks below, in no particular order.

How to classify junk email with Bayesian statistics

This trick uses procmail and dbacl to filter out undesirable junk sent via email.

Indexing Postscript and PDF documents containing mathematical equations

This trick uses dbacl to filter out random junk data that appears whenever a PS/PDF document containing mathematical typesetting is converted to plain text.

How to display the current command line in an xterm title with bash

This trick uses readline to change the current xterm title to reflect the currently running command. Works on pre-3 versions of bash.