Quick StartThis chapter is for impatient people who don't like reading
documentation. For more in-depth information you are kindly referred
to the following chapters.Install Nix by running the following:
$ bash <(curl https://nixos.org/nix/install)
This will install Nix in /nix. The install script
will create /nix using sudo,
so make sure you have sufficient rights. (For other installation
methods, see .)See what installable packages are currently available
in the channel:
$ nix-env -qa
docbook-xml-4.2
firefox-1.0pre-PR-0.10.1
hello-2.1.1
libxslt-1.1.0
...Install some packages from the channel:
$ nix-env -i hello ...
This should download pre-built packages; it should not build them
locally (if it does, something went wrong).Test that they work:
$ which hello
/home/eelco/.nix-profile/bin/hello
$ hello
Hello, world!
Uninstall a package:
$ nix-env -e helloTo keep up-to-date with the channel, do:
$ nix-channel --update nixpkgs
$ nix-env -u '*'
The latter command will upgrade each installed package for which there
is a “newer” version (as determined by comparing the version
numbers).You can also install specific packages directly from
your web browser. For instance, you can go to and click on any link for the individual packages for your
platform. Associate application/nix-package with
the program nix-install-package. A window should
appear asking you whether it’s okay to install the package. Say
Y. The package and all its dependencies will be
installed.If you're unhappy with the result of a
nix-env action (e.g., an upgraded package turned
out not to work properly), you can go back:
$ nix-env --rollbackYou should periodically run the Nix garbage collector
to get rid of unused packages, since uninstalls or upgrades don't
actually delete them:
$ nix-collect-garbage -d