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35 lines
684 B
Markdown
35 lines
684 B
Markdown
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# Name
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`nix-env --rollback` - set user environment to previous generation
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# Synopsis
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`nix-env` `--rollback`
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# Description
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This operation switches to the “previous” generation of the active
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profile, that is, the highest numbered generation lower than the current
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generation, if it exists. It is just a convenience wrapper around
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`--list-generations` and `--switch-generation`.
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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 --rollback
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switching from generation 92 to 91
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```
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```console
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$ nix-env --rollback
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error: no generation older than the current (91) exists
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```
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