pacman-query

Query the local package database and list installed packages and versions

List only packages that were explicitly installed without version numbers

Find which package owns a file

Display information about an installed package

Display the list of files owned by a specific package

List orphan packages (installed as dependencies but unrequired (t) by any package and print in quiet mode (only package name is displayed))

List installed packages foreign (m) to the repository database

List packages that can be upgraded