forked from lix-project/lix
5744dd5480
e.g., $ nix-env -i -A subversion xorg.xorgserver The main advantage over using symbolic names is that using attribute names is unambiguous and much, much faster.
69 lines
2.5 KiB
Plaintext
69 lines
2.5 KiB
Plaintext
Usage: nix-env [OPTIONS...] [ARGUMENTS...]
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`nix-env' is a tool to manipulate Nix user environments.
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Operations:
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--install / -i: add derivations to the user environment
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--upgrade / -u: upgrade derivation in the user environment
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--uninstall / -e: remove derivations from the user environment
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--query / -q: perform a query on an environment or Nix expression
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The previous operations take a list of derivation names. The special
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name `*' may be used to indicate all derivations.
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--switch-profile / -S [FILE]: switch to specified profile
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--switch-generation / -G NUMBER: switch to specified generation of profile
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--rollback: switch to the previous generation
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--list-generations: list available generations of a profile
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--delete-generations GENERATIONS...: deleted listed generations,
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`old' for all non-current generations
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--import / -I FILE: set default Nix expression
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--version: output version information
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--help: display help
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Install / upgrade / uninstall flags:
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--dry-run: show what would be done, but don't do it
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Installation sources:
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--from-expression / -E EXPR...: evaluate expressions specified on
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the command line; expressions should be functions that take the
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default Nix expression as an argument
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--from-profile PROFILE NAMES...: copy named packages from PROFILE
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--attr / -A ATTRS...: select attributes by name from the default Nix
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expression
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Upgrade flags:
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--lt: upgrade if the current version is older (default)
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--leq: upgrade if the current version is older or equal
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--eq: "upgrade" if the current version is equal
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--always: upgrade regardless of current version
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Query types:
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--status / -s: print installed/present status
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--no-name: hide derivation names
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--system: print the platform type of the derivation
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--compare-versions / -c: compare version to available or installed
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--drv-path: print path of derivation
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--out-path: print path of derivation output
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Query sources:
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--installed: use installed derivations (default)
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--available / -a: use derivations available in Nix expression
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Options:
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--profile / -p LINK: use specified profile instead of target of ~/.nix-profile
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--file / -f FILE: use Nix expression FILE for installation, etc.
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--verbose / -v: verbose operation (may be repeated)
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--keep-failed / -K: keep temporary directories of failed builds
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--preserve-installed: do not replace currently installed versions in `-i'
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--system-filter SYSTEM: only use derivations for specified platform
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