[gentoo]почистить

emerge --unmerge
emerge --depclean

[I] app-portage/findcruft [1]
     Available versions:  (~)1.0.4-r1!m
     Installed versions:  1.0.4-r1!m(13:53:43 26.01.2009)
     Homepage:            http://forums.gentoo.org/viewtopic.php?t=254197
     Description:         Yet another script to find obsolete files

[1] "arcon" /usr/portage/local/layman/arcon

$ eix findcruft
[I] app-admin/findcruft2
     Available versions:  20080831[1] 20080831[4]
     Installed versions:  20080831[1](07:01:57 19.03.2009)
     Homepage:            http://benedikt.boehm.name
     Description:         findcruft2 is a tool to find orphaned files for unmerged packages
...
[1] "local" /usr/local/portage
...
[4] "hollow" /usr/local/overlays/layman/hollow

http://support.microsoft.com/kb/247804