I thought I'd post these. Basically you have 3 commands - ph, sbh and pah.
ph - package history
sbh - slackbuilds.org history
pah - patch history
Usage:
'ph N' lists last N packages installed. If N is omitted all packages are listed.
They are a fast way to list /var/log/packages/*
http://www.dawoodfall.net/files/slac...sion/pkgutils/