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34 lines
765 B
Markdown
34 lines
765 B
Markdown
# Name
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`nix-env --switch-generation` - set user environment to given profile generation
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# Synopsis
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`nix-env` {`--switch-generation` | `-G`} *generation*
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# Description
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This operation makes generation number *generation* the current
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generation of the active profile. That is, if the `profile` is the path
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to the active profile, then the symlink `profile` is made to point to
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`profile-generation-link`, which is in turn a symlink to the actual user
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environment in the Nix store.
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Switching will fail if the specified generation does not exist.
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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 --switch-generation 42
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switching from generation 50 to 42
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```
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