In general, I like to keep my computers squeaky clean. When it comes to packages installed in an ubuntu or debian system, I like to use debfoster. These days I use Arch Linux, so I wrote something somewhat similar for it. One uses it like so:
[plopez@plopez-8440p pacreview]$ sudo ./pacreview pacreview WARNING - needs to be run as root, and has no 'undo' Building reverse Optional Deps database... Remove unrequired package ack? [k,r,i,l,x,#,q,h=help]: keep Remove unrequired package alsa-utils? [k,r,i,l,x,#,q,h=help]: help k = keep r = remove i = show package info l = show package file list x = show package executables # = (number) show info for package in optdep list q = quit h = this help Remove unrequired package alsa-utils? [k,r,i,l,x,#,q,h=help]:
When run in your terminal, package names are bold so they stand out, and even though it looks like I typed "help" above, I just tapped the "h" key.
This is a perl script, and it uses the perl module
Check it out on Bitbucket