equery

TLDR

List all installed packages

$ equery list '*'

Search for packages in Portage tree and overlays

$ equery list -po [package1] [package2]

List all packages that depend on a package

$ equery depends [package]

List all packages that a package depends on

$ equery depgraph [package]

List all files installed by a package

$ equery files --tree [package]

SYNOPSIS

equery command [options] [package]

DESCRIPTION

equery views information about Portage packages on Gentoo. It queries installed packages, dependencies, files, and USE flags.
Part of the gentoolkit package providing Gentoo-specific utilities.

PARAMETERS

list pattern

List packages matching pattern

depends package

Show reverse dependencies

depgraph package

Show dependency graph

files package

List installed files

-p, --portage-tree

Include Portage tree

-o, --overlay-tree

Include overlays

--tree

Display as tree

CAVEATS

Gentoo Linux specific. Part of gentoolkit package. Only queries local database, not remote repositories.