equery

Portage package information query tool

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]

equery is a powerful query tool for viewing information about Portage packages on Gentoo Linux. It provides detailed information about installed packages, their dependencies, owned files, USE flag settings, and more. The tool can search both the local installed package database and the Portage tree including overlays.
As part of the gentoolkit package, equery offers a more user-friendly interface than raw Portage queries, making it easier to investigate package relationships, troubleshoot installation issues, and understand the state of the system. It's an essential tool for Gentoo system administration and package management.

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.