1 KiB
nix-collect-garbage
1
Nix
nix-collect-garbage
delete unreachable store paths
nix-collect-garbage
--delete-old
-d
--delete-older-than
period
--max-freed
bytes
--dry-run
Description
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).
Example
To delete from the Nix store everything that is not used by the current generations of each profile, do
$ nix-collect-garbage -d