20 lines
900 B
Markdown
20 lines
900 B
Markdown
|
# Configuration Syntax {#sec-configuration-syntax}
|
||
|
|
|
||
|
|
The NixOS configuration file `/etc/nixos/configuration.nix` is actually
|
||
|
|
a *Nix expression*, which is the Nix package manager's purely functional
|
||
|
|
language for describing how to build packages and configurations. This
|
||
|
|
means you have all the expressive power of that language at your
|
||
|
|
disposal, including the ability to abstract over common patterns, which
|
||
|
|
is very useful when managing complex systems. The syntax and semantics
|
||
|
|
of the Nix language are fully described in the [Nix
|
||
|
|
manual](https://nixos.org/nix/manual/#chap-writing-nix-expressions), but
|
||
|
|
here we give a short overview of the most important constructs useful in
|
||
|
|
NixOS configuration files.
|
||
|
|
|
||
|
|
```{=docbook}
|
||
|
|
<xi:include href="config-file.section.xml" />
|
||
|
|
<xi:include href="abstractions.section.xml" />
|
||
|
|
<xi:include href="modularity.section.xml" />
|
||
|
|
<xi:include href="summary.section.xml" />
|
||
|
|
```
|