Linux

This chapter is about maintaining a Linux computer. The focus is mainly on Arch Linux.

Package Management

To check which package owns a given file, use pacman -Qo FILE. The converse command, to check which package provides a file, is pacman -F FILE.

To clean the package cache, use the paccache script. To remove all but the two most recent copies of each package:

paccache -rk2

The -r flag removes packages and the -k flag controls the number of versions that are kept. The useful -u flag makes the command target only packages that are not installed.