[已解决]如何删除过时的distfiles

随着时间的推移， 您可能会在 distfiles 目录中积累下大量源代码文件。 您可以手工删除这些文件， 也可以使用下面的命令来删除所有 port 都不引用的文件：
# portsclean -D

 --depclean
 Cleans the system by removing packages that are not associated with explicitly
 merged packages. Depclean works by creating the full dependency tree from the sys‐
 tem and world sets, then comparing it to installed packages. Packages installed,
 but not part of the dependency tree, will be uninstalled by depclean. See
 --with-bdeps for behavior with respect to build time dependencies that are not
 strictly required. Packages that are part of the world set will always be kept.
 They can be manually added to this set with emerge --noreplace <atom>. As a safety
 measure, depclean will not remove any packages unless *all* required dependencies
 have been resolved. As a consequence, it is often necessary to run emerge --update
 --newuse --deep world prior to depclean.
 
 WARNING: Inexperienced users are advised to use --pretend with this option in
 order to see a preview of which packages will be uninstalled. Always study the
 list of packages to be cleaned for any obvious mistakes. Note that packages listed
 in package.provided (see portage(5)) may be removed by depclean, even if they are
 part of the world set. Also note that depclean may break link level dependencies.
 Thus, it is recommended to use a tool such as revdep-rebuild(1) in order to detect
 such breakage.

 Depclean serves as a dependency aware version of --unmerge. When given one or more
 atoms, it will unmerge matched packages that have no reverse dependencies. Use
 --depclean together with --verbose to show reverse dependencies.

1 : cd /usr/portage/distfiles ; ls -lhSr 列出大包手工 rm 
2: 用 sys-fs/ncdu 这个小工具

[ distfiles] $ df -hT ./
文件系统 类型 容量 已用 可用 已用% 挂载点
/dev/sda7 ext3 5.3G 5.0G 26M 100% /