forked from lix-project/lix
36b059748d
Documentation on "classic" commands with many sub-commands are notoriously hard to discover due to lack of overview and anchor links. Additionally the information on common options and environment variables is not accessible offline in man pages, and therefore often overlooked by readers. With this change, each sub-command of nix-store and nix-env gets its own page in the manual (listed in the table of contents), and each own man page. Also, man pages for each subcommand now (again) list common options and environment variables. While this makes each page quite long and some common parameters don't apply, this should still make it easier to navigate as that additional information was not accessible on the command line at all. It is now possible to run 'nix-store --<subcommand> --help` to display help pages for the given subcommand. Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
35 lines
1.1 KiB
Markdown
35 lines
1.1 KiB
Markdown
# Name
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`nix-collect-garbage` - delete unreachable store paths
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# Synopsis
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`nix-collect-garbage` [`--delete-old`] [`-d`] [`--delete-older-than` *period*] [`--max-freed` *bytes*] [`--dry-run`]
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# Description
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The command `nix-collect-garbage` is mostly an alias of [`nix-store
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--gc`](@docroot@/command-ref/nix-store/gc.md), that is, it deletes all
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unreachable paths in the Nix store to clean up your system. However,
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it provides two additional options: `-d` (`--delete-old`), which
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deletes all old generations of all profiles in `/nix/var/nix/profiles`
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by invoking `nix-env --delete-generations old` on all profiles (of
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course, this makes rollbacks to previous configurations impossible);
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and `--delete-older-than` *period*, where period is a value such as
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`30d`, which deletes all generations older than the specified number
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of days in all profiles in `/nix/var/nix/profiles` (except for the
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generations that were active at that point in time).
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{{#include ./opt-common.md}}
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{{#include ./env-common.md}}
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# Example
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To delete from the Nix store everything that is not used by the current
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generations of each profile, do
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```console
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$ nix-collect-garbage -d
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```
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