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47 lines
1.1 KiB
Markdown
47 lines
1.1 KiB
Markdown
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# Name
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`nix-env --delete-generations` - delete profile generations
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# Synopsis
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`nix-env` `--delete-generations` *generations*
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# Description
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This operation deletes the specified generations of the current profile.
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The generations can be a list of generation numbers, the special value
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`old` to delete all non-current generations, a value such as `30d` to
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delete all generations older than the specified number of days (except
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for the generation that was active at that point in time), or a value
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such as `+5` to keep the last `5` generations ignoring any newer than
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current, e.g., if `30` is the current generation `+5` will delete
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generation `25` and all older generations. Periodically deleting old
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generations is important to make garbage collection effective.
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{{#include ./opt-common.md}}
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{{#include ../opt-common.md}}
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{{#include ./env-common.md}}
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{{#include ../env-common.md}}
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# Examples
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```console
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$ nix-env --delete-generations 3 4 8
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```
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```console
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$ nix-env --delete-generations +5
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```
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```console
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$ nix-env --delete-generations 30d
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```
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```console
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$ nix-env -p other_profile --delete-generations old
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```
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