pactree

Print dependency tree of a package

$ pactree [package]

$ pactree -r [package]

$ pactree -u [package]

$ pactree -co [package]

$ pactree -d [depth] [package]

$ pactree

pactree [-c|--color] [-d depth] [-o|--optional] [-r|--reverse] [-u|--unique] package

pactree visualizes package dependencies in a tree format. It queries pacman's database to show what packages a given package depends on, or with the reverse option, what packages depend on it.
The tool is useful for understanding package relationships, identifying orphaned packages, and planning package removal to avoid breaking dependencies.

-c, --color

Colorize output for better readability

Limit recursion depth

Include optional dependencies in tree

Show reverse dependencies (packages depending on target)

Query sync databases instead of local

List each dependency only once, one per line

Use alternate pacman configuration

Only shows dependencies for installed packages by default. Use -s flag for sync database queries. Large dependency trees can produce extensive output. Optional dependencies are hidden unless -o is specified.

pactree was originally a standalone script that became part of the official pacman-contrib package. It provides visual dependency information that pacman's standard query options don't offer in an easy-to-read format.

pacman(8), pactrans(1), pkgfile(1)