eclean

Clean source file directory

$ sudo eclean distfiles

$ sudo eclean packages

$ sudo eclean -d -n distfiles

$ sudo eclean -d -n packages

eclean [options] target

eclean cleans Gentoo repository source files and binary packages. It removes old or unused distfiles and packages to free disk space.
The tool operates on two main targets: distfiles (source tarballs in /usr/portage/distfiles) and packages (binary packages in /usr/portage/packages). Over time, these directories accumulate old versions and files for uninstalled packages, consuming significant disk space.
eclean provides both conservative and aggressive cleaning modes. Normal mode keeps files for installed packages and current portage tree entries, while deep mode only keeps files for currently installed packages. This is particularly useful on systems with limited storage or after system upgrades.

distfiles

Clean source download directory

Clean binary package directory

Only keep files for installed packages

Protect files by package name, not version

Show what would be deleted

Gentoo-specific. Use -p to preview before deleting. Deep clean may remove files needed to reinstall packages.

emerge(1), eclean-kernel(1)