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| -rw-r--r-- | doc/manual/src/command-ref/env-common.md | 13 |
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diff --git a/doc/manual/src/command-ref/env-common.md b/doc/manual/src/command-ref/env-common.md index bb85a6b07..c5d38db47 100644 --- a/doc/manual/src/command-ref/env-common.md +++ b/doc/manual/src/command-ref/env-common.md @@ -91,3 +91,16 @@ Most Nix commands interpret the following environment variables: variable sets the initial size of the heap in bytes. It defaults to 384 MiB. Setting it to a low value reduces memory consumption, but will increase runtime due to the overhead of garbage collection. + +## XDG Base Directory + +New Nix commands conform to the [XDG Base Directory Specification], and use the following environment variables to determine locations of various state and configuration files: + +- [`XDG_CONFIG_HOME`]{#env-XDG_CONFIG_HOME} (default `~/.config`) +- [`XDG_STATE_HOME`]{#env-XDG_STATE_HOME} (default `~/.local/state`) +- [`XDG_CACHE_HOME`]{#env-XDG_CACHE_HOME} (default `~/.cache`) + +Classic Nix commands can also be made to follow this standard using the [`use-xdg-base-directories`] configuration option. + +[XDG Base Directory Specification]: https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html +[`use-xdg-base-directories`]: ../command-ref/conf-file.md#conf-use-xdg-base-directories
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