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nix-super/src/nix-env/help.txt

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* 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 17:55:05 +02:00
nix-env [OPTIONS...] [ARGUMENTS...]
`nix-env' is a tool to manipulate Nix user environments.
Operations:
* Implemented Eelco V.'s `nix-env -I' command to specify the default path of the Nix expression to be used with the import, upgrade, and query commands. For instance, $ nix-env -I ~/nixpkgs/pkgs/system/i686-linux.nix $ nix-env --query --available [aka -qa] sylpheed-0.9.7 bison-1.875 pango-1.2.5 subversion-0.35.1 ... $ nix-env -i sylpheed $ nix-env -u subversion There can be only one default at a time. * If the path to a Nix expression is a symlink, follow the symlink prior to resolving relative path references in the expression.
2004-01-05 18:26:43 +02:00
--install / -i: add derivations to the user environment
--upgrade / -u: upgrade derivation in the user environment
* Version numbers can be omitted in install/uninstall. E.g., nix-env -i foo.nix subversion The version number part of a derivation name is defined as everything following the first dash not followed by a letter.
2003-12-22 01:58:56 +02:00
--uninstall / -e: remove derivations from the user environment
* 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 17:55:05 +02:00
--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.
* Improvements to profiles. Generations are now per-profile, e.g., default -> default-94-link default-82-link -> /nix/store/cc4480... default-83-link -> /nix/store/caeec8... ... default-94-link -> /nix/store/2896ca... experimental -> experimental-2-link experimental-1-link -> /nix/store/cc4480... experimental-2-link -> /nix/store/a3148f... * `--profile' / `-p' -> `--switch-profile' / `-S' * `--link' / `-l' -> `--profile' / `-p' * The default profile is stored in $prefix/var/nix/profiles. $prefix/var/nix/links is gone. Profiles can be stored anywhere. * The current profile is now referenced from ~/.nix-profile, not ~/.nix-userenv. * The roots to the garbage collector now have extension `.gcroot', not `.id'.
2004-02-06 12:30:20 +02:00
--switch-profile / -S [FILE]: switch to specified profile
* Implemented Eelco V.'s `nix-env -I' command to specify the default path of the Nix expression to be used with the import, upgrade, and query commands. For instance, $ nix-env -I ~/nixpkgs/pkgs/system/i686-linux.nix $ nix-env --query --available [aka -qa] sylpheed-0.9.7 bison-1.875 pango-1.2.5 subversion-0.35.1 ... $ nix-env -i sylpheed $ nix-env -u subversion There can be only one default at a time. * If the path to a Nix expression is a symlink, follow the symlink prior to resolving relative path references in the expression.
2004-01-05 18:26:43 +02:00
--import / -I FILE: set default Nix expression
* Implemented Eelco V.'s `-p' command to switch profiles. It switches the symlink ~/.nix-userenv to the given argument (which defaults to .../links/current). /etc/profile.d/nix-profile creates this symlink if it doesn't exist yet. Example use: $ nix-env -l my_profile -i foo.nix subversion quake $ nix-env -p my_profile I don't like the term "profile". Let's deprecate it :-)
2004-01-05 13:18:59 +02:00
* 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 17:55:05 +02:00
--version: output version information
--help: display help
Query types:
--name: print derivation names (default)
* Sort `nix-env -q' output by derivation name. * `--version' flag for all commands. * Manual updates.
2004-02-02 12:51:54 +02:00
--expr: print derivation store expression
* 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 17:55:05 +02:00
--status / -s: print installed/present status
Query sources:
--installed: use installed derivations (default)
* Implemented Eelco V.'s `nix-env -I' command to specify the default path of the Nix expression to be used with the import, upgrade, and query commands. For instance, $ nix-env -I ~/nixpkgs/pkgs/system/i686-linux.nix $ nix-env --query --available [aka -qa] sylpheed-0.9.7 bison-1.875 pango-1.2.5 subversion-0.35.1 ... $ nix-env -i sylpheed $ nix-env -u subversion There can be only one default at a time. * If the path to a Nix expression is a symlink, follow the symlink prior to resolving relative path references in the expression.
2004-01-05 18:26:43 +02:00
--available / -a: use derivations available in Nix expression
* 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 17:55:05 +02:00
Options:
* Improvements to profiles. Generations are now per-profile, e.g., default -> default-94-link default-82-link -> /nix/store/cc4480... default-83-link -> /nix/store/caeec8... ... default-94-link -> /nix/store/2896ca... experimental -> experimental-2-link experimental-1-link -> /nix/store/cc4480... experimental-2-link -> /nix/store/a3148f... * `--profile' / `-p' -> `--switch-profile' / `-S' * `--link' / `-l' -> `--profile' / `-p' * The default profile is stored in $prefix/var/nix/profiles. $prefix/var/nix/links is gone. Profiles can be stored anywhere. * The current profile is now referenced from ~/.nix-profile, not ~/.nix-userenv. * The roots to the garbage collector now have extension `.gcroot', not `.id'.
2004-02-06 12:30:20 +02:00
--profile / -p LINK: use specified profile instead of target of ~/.nix-profile
* Implemented Eelco V.'s `nix-env -I' command to specify the default path of the Nix expression to be used with the import, upgrade, and query commands. For instance, $ nix-env -I ~/nixpkgs/pkgs/system/i686-linux.nix $ nix-env --query --available [aka -qa] sylpheed-0.9.7 bison-1.875 pango-1.2.5 subversion-0.35.1 ... $ nix-env -i sylpheed $ nix-env -u subversion There can be only one default at a time. * If the path to a Nix expression is a symlink, follow the symlink prior to resolving relative path references in the expression.
2004-01-05 18:26:43 +02:00
--file / -f FILE: use Nix expression FILE for installation, etc.
* Help text for all (non-script) programs, so no more: $ nix-instantiate --help error: unknown flag `--help` Try `nix-instantiate --help' for more information. :-)
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--verbose / -v: verbose operation (may be repeated)
--keep-failed / -K: keep temporary directories of failed builds
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