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author | Eelco Dolstra <edolstra@gmail.com> | 2020-07-31 15:43:25 +0200 |
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committer | Eelco Dolstra <edolstra@gmail.com> | 2020-07-31 15:43:25 +0200 |
commit | 1d0a7b54fa330b041a720932ee4e05dcad1d2d5c (patch) | |
tree | 48627a3530e4d6d58c612864b2e99afb11a0a902 /doc/manual/src/package-management/basic-package-mgmt.md | |
parent | 0c94c176446bd9e9cb8c7e16fb7c6d88bb4e9a20 (diff) |
Enable syntax highlighting
Diffstat (limited to 'doc/manual/src/package-management/basic-package-mgmt.md')
-rw-r--r-- | doc/manual/src/package-management/basic-package-mgmt.md | 82 |
1 files changed, 52 insertions, 30 deletions
diff --git a/doc/manual/src/package-management/basic-package-mgmt.md b/doc/manual/src/package-management/basic-package-mgmt.md index 17b5cc9c2..9702a29eb 100644 --- a/doc/manual/src/package-management/basic-package-mgmt.md +++ b/doc/manual/src/package-management/basic-package-mgmt.md @@ -31,8 +31,10 @@ automatically added to your list of “subscribed” channels when you install Nix. If this is not the case for some reason, you can add it as follows: - $ nix-channel --add https://nixos.org/channels/nixpkgs-unstable - $ nix-channel --update +```console +$ nix-channel --add https://nixos.org/channels/nixpkgs-unstable +$ nix-channel --update +``` > **Note** > @@ -44,14 +46,16 @@ as follows: You can view the set of available packages in Nixpkgs: - $ nix-env -qa - aterm-2.2 - bash-3.0 - binutils-2.15 - bison-1.875d - blackdown-1.4.2 - bzip2-1.0.2 - … +```console +$ nix-env -qa +aterm-2.2 +bash-3.0 +binutils-2.15 +bison-1.875d +blackdown-1.4.2 +bzip2-1.0.2 +… +``` The flag `-q` specifies a query operation, and `-a` means that you want to show the “available” (i.e., installable) packages, as opposed to the @@ -59,31 +63,39 @@ installed packages. If you downloaded Nixpkgs yourself, or if you checked it out from GitHub, then you need to pass the path to your Nixpkgs tree using the `-f` flag: - $ nix-env -qaf /path/to/nixpkgs +```console +$ nix-env -qaf /path/to/nixpkgs +``` where */path/to/nixpkgs* is where you’ve unpacked or checked out Nixpkgs. You can select specific packages by name: - $ nix-env -qa firefox - firefox-34.0.5 - firefox-with-plugins-34.0.5 +```console +$ nix-env -qa firefox +firefox-34.0.5 +firefox-with-plugins-34.0.5 +``` and using regular expressions: - $ nix-env -qa 'firefox.*' +```console +$ nix-env -qa 'firefox.*' +``` It is also possible to see the *status* of available packages, i.e., whether they are installed into the user environment and/or present in the system: - $ nix-env -qas - … - -PS bash-3.0 - --S binutils-2.15 - IPS bison-1.875d - … +```console +$ nix-env -qas +… +-PS bash-3.0 +--S binutils-2.15 +IPS bison-1.875d +… +``` The first character (`I`) indicates whether the package is installed in your current user environment. The second (`P`) indicates whether it is @@ -96,7 +108,9 @@ Nix knows that it can fetch a pre-built package from somewhere You can install a package using `nix-env -i`. For instance, - $ nix-env -i subversion +```console +$ nix-env -i subversion +``` will install the package called `subversion` (which is, of course, the [Subversion version management system](http://subversion.tigris.org/)). @@ -121,12 +135,16 @@ will install the package called `subversion` (which is, of course, the Naturally, packages can also be uninstalled: - $ nix-env -e subversion +```console +$ nix-env -e subversion +``` Upgrading to a new version is just as easy. If you have a new release of Nix Packages, you can do: - $ nix-env -u subversion +```console +$ nix-env -u subversion +``` This will *only* upgrade Subversion if there is a “newer” version in the new set of Nix expressions, as defined by some pretty arbitrary rules @@ -137,14 +155,18 @@ whatever version is in the Nix expressions, use `-i` instead of `-u`; You can also upgrade all packages for which there are newer versions: - $ nix-env -u +```console +$ nix-env -u +``` Sometimes it’s useful to be able to ask what `nix-env` would do, without actually doing it. For instance, to find out what packages would be upgraded by `nix-env -u`, you can do - $ nix-env -u --dry-run - (dry run; not doing anything) - upgrading `libxslt-1.1.0' to `libxslt-1.1.10' - upgrading `graphviz-1.10' to `graphviz-1.12' - upgrading `coreutils-5.0' to `coreutils-5.2.1' +```console +$ nix-env -u --dry-run +(dry run; not doing anything) +upgrading `libxslt-1.1.0' to `libxslt-1.1.10' +upgrading `graphviz-1.10' to `graphviz-1.12' +upgrading `coreutils-5.0' to `coreutils-5.2.1' +``` |