nix-super/src/nix-env/help.txt
Eelco Dolstra 078e20885e * Help text for all (non-script) programs, so no more:
$ nix-instantiate --help
error: unknown flag `--help`
Try `nix-instantiate --help' for more information.

:-)
2003-12-01 15:55:05 +00:00

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nix-env [OPTIONS...] [ARGUMENTS...]
`nix-env' is a tool to manipulate Nix user environments.
Operations:
--install / -i FILE: add a derivation to the user environment
--uninstall / -u: remove a derivation to 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.
--version: output version information
--help: display help
Query types:
--name: print derivation names (default)
--expr / -e: print derivation store expression
--status / -s: print installed/present status
Query sources:
--installed: use installed derivations (default)
--available / -f FILE: use derivations available in expression FILE
Options:
--verbose / -v: verbose operation (may be repeated)
--keep-failed / -K: keep temporary directories of failed builds