diff options
Diffstat (limited to 'doc/manual/command-ref')
| -rw-r--r-- | doc/manual/command-ref/nix-env.xml | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/doc/manual/command-ref/nix-env.xml b/doc/manual/command-ref/nix-env.xml index d4563ac47551..f0e70a41c024 100644 --- a/doc/manual/command-ref/nix-env.xml +++ b/doc/manual/command-ref/nix-env.xml @@ -1346,9 +1346,10 @@ $ nix-env --list-generations <para>This operation deletes the specified generations of the current 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 +generations, a value such as <literal>30d</literal> to delete all generations older than the specified number of days (except for the -generation that was active at that point in time). +generation that was active at that point in time), or a value such as. +<literal>+5</literal> to delete all but the number of items specified. Periodically deleting old generations is important to make garbage collection effective.</para> @@ -1359,6 +1360,8 @@ collection effective.</para> <screen> $ nix-env --delete-generations 3 4 8 +$ nix-env --delete-generations +5 + $ nix-env --delete-generations 30d $ nix-env -p other_profile --delete-generations old</screen> |