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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
  --import / -I FILE: set default Nix expression

  --version: output version information
  --help: display help

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