diff options
Diffstat (limited to 'doc/manual/nix-env.xml')
| -rw-r--r-- | doc/manual/nix-env.xml | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/manual/nix-env.xml b/doc/manual/nix-env.xml index 3bfcb15dbac2..c44020803451 100644 --- a/doc/manual/nix-env.xml +++ b/doc/manual/nix-env.xml @@ -1170,7 +1170,8 @@ $ nix-env --list-generations profile. The generations can be a list of generation numbers, the special value <literal>old</literal> to delete all non-current generations, or a value such as <literal>30d</literal> to delete all -non-current generations older than the specified number of days. +generations older than the specified number of days (except for the +generation that was active at that point in time). Periodically deleting old generations is important to make garbage collection effective.</para> |