eix
fast Gentoo package search utility
TLDR
Search the Portage package cache by name
$ eix [query]
Limit results to packages that are already installed$ eix --installed [query]
Match against the package description text$ eix --description "[text]"
Filter by license name$ eix --license [license]
Invert a filter (e.g. packages not under a license)$ eix --not --license [license]
SYNOPSIS
eix [options] [query]
DESCRIPTION
eix searches local Gentoo packages quickly using a pre-built cache. It provides fast package lookups with detailed version and USE flag information.Run `eix-update` to update the local package cache before searching.
PARAMETERS
--installed
Only show installed packages--description text
Search in package descriptions--license license
Search by license--not
Negate the following condition-c, --compact
Compact output format-e, --exact
Exact name match
CAVEATS
Gentoo Linux specific. Requires running eix-update to build cache. Cache must be updated after emerge --sync.