forked from lix-project/lix
618aa69b01
whether we want to upgrade if the current version is less than the available version (default), when it is less or equal, or always. * Added a flag `--dry-run' to show what would happen in `--install', `--uninstall', and `--upgrade', without actually performing the operation.
52 lines
1.7 KiB
Plaintext
52 lines
1.7 KiB
Plaintext
nix-env [OPTIONS...] [ARGUMENTS...]
|
|
|
|
`nix-env' is a tool to manipulate Nix user environments.
|
|
|
|
Operations:
|
|
|
|
--install / -i: add derivations to the user environment
|
|
--upgrade / -u: upgrade derivation in the user environment
|
|
--uninstall / -e: remove derivations from the user environment
|
|
--query / -q: perform a query on an environment or Nix expression
|
|
|
|
The previous operations take a list of derivation names. The special
|
|
name `*' may be used to indicate all derivations.
|
|
|
|
--switch-profile / -S [FILE]: switch to specified profile
|
|
--switch-generation / -G NUMBER: switch to specified generation of profile
|
|
--rollback: switch to the previous generation
|
|
--list-generations: list available generations of a profile
|
|
|
|
--import / -I FILE: set default Nix expression
|
|
|
|
--version: output version information
|
|
--help: display help
|
|
|
|
Install / upgrade / uninstall flags:
|
|
|
|
--dry-run: show what would be done, but don't do it
|
|
|
|
Upgrade flags:
|
|
|
|
--lt: upgrade unless the current version is older (default)
|
|
--leq: upgrade unless the current version is older or current
|
|
--always: upgrade regardless of current version
|
|
|
|
Query types:
|
|
|
|
--name: print derivation names (default)
|
|
--expr: print derivation store expression
|
|
--status / -s: print installed/present status
|
|
|
|
Query sources:
|
|
|
|
--installed: use installed derivations (default)
|
|
--available / -a: use derivations available in Nix expression
|
|
|
|
Options:
|
|
|
|
--profile / -p LINK: use specified profile instead of target of ~/.nix-profile
|
|
--file / -f FILE: use Nix expression FILE for installation, etc.
|
|
--verbose / -v: verbose operation (may be repeated)
|
|
--keep-failed / -K: keep temporary directories of failed builds
|