pacman(1)
+Remote package repositories
+pacman -Sy refresh package database
+pacman -S <pkg> install pkg
+pacman -Ss <regex> search remote package database
+pacman -Si <pkg> get info for pkg
+pacman -Su upgrade installed packages
+pacman -Sc clean local package cache
+
+Remove packages
+pacman -Rsn <pkg> uninstall package and unneeded deps + config files
+
+Local package database
+Local package database of installed packages.
+pacman -Q list all installed packages
+pacman -Qs <regex> search local package database
+pacman -Ql <pkg> list files installed by pkg
+pacman -Qo <file> query package that owns file
+pacman -Qe only list explicitly installed packages
+
+Local file database
+Local file database which allows to search packages owning certain files. +Also searches non installed packages, but database must be synced.
+pacman -Fy refresh file database
+pacman -Fl <pkg> list files in pkg (must not be installed)
+pacman -Fx <regex> search
+
+Hacks
+Uninstall all orphaned packages (including config files) that were installed as +dependencies.
+pacman -Rsn $(pacman -Qqtq)
+
+List explicitly installed packages that are not required as dependency by any +package and sort by size.
+pacman -Qetq | xargs pacman -Qi |
+ awk '/Name/ { name=$3 }
+ /Installed Size/ { printf "%8.2f%s %s\n", $4, $5, name }' |
+ sort -h
+
+
+