Pacman

Common commands

pacman -Syy # update the software database

pacman -S <pkg> # Install only

pacman -Rsc <pkg> # Uninstall

pacman -Rsc*n* <pkg> # Uninstall (and remove configuration files)

pacman -S*s* <keywords> # Search

pacman -Syu # Upgrade everything

pacman -Syu <pkg> # Install (and update package list (and upgrade everything else ! )

pacman -S*w* <pkg> # Download a package without installing it

pacman -U <local_path> # install from local (e.g. package is from the AUR)

Query

pacman -Qe # List explictly-installed packages

pacman -Ql <pkg> # What files does this package have?

pacman -Qii <pkg> # List information on package

pacman -Qo <file> # Who owns this file?

pacman -Qs <query> # Search installed packages for keywords

Orphans

pacman -Qdt # List unneeded packages

pacman -Rns ili pacman -Qdtq # Uninstall unneeded packages

Other

pactree <pkg> # What does pkg depend on?

pactree -r <pkg> # What depends on pkg?

pacman -Sc # remove all the cached packages that are not currently installed

pacman -Scc # remove all files from the cache

Configuration file

Configuration file is in: /etc/pacman.conf

Look:

man 5 pacman.conf