nix-collect-garbage - delete unreachable store paths
nix-collect-garbage [--delete-old] [-d]
[--delete-older-than period]
[--max-freed bytes] [--dry-run]
The command nix-collect-garbage is mostly an alias of nix-store
--gc, that is, it deletes all unreachable paths in the Nix store to clean
up your system. However, it provides two additional options: -d
(--delete-old), which deletes all old generations of all profiles in
/nix/var/nix/profiles by invoking nix-env --delete-generations old on all
profiles (of course, this makes rollbacks to previous configurations
impossible); and --delete-older-than period, where period is a
value such as 30d, which deletes all generations older than the specified
number of days in all profiles in /nix/var/nix/profiles (except for the
generations that were active at that point in time).
To delete from the Nix store everything that is not used by the current
generations of each profile, do
Copyright © 2004-2018 Eelco Dolstra