Command Shell: Difference between revisions

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A shell is a program that translates text commands (like {{ic|ls}}, {{ic|vim}}, {{ic|reboot}} etc) into instructions for your computer. The default shell on NixOS is [[bash]], but it can be easily changed.

A [https://en.wikipedia.org/wiki/Unix_shell shell] is a program that translates text commands (like {{ic|ls}}, {{ic|vim}}, {{ic|reboot}} etc) into instructions for your computer. The default shell on NixOS is [[bash]], but it can be easily changed.

{{note|[[Zsh]] is used here as an example. You can use other shells, e.g. ~~{{ic|fish}}~~ or ~~{{ic|nushell}}~~.}}

{{note|[[Zsh]] is used here as an example. You can use other shells, e.g. [[Fish]] or [[Nushell]].}}

== Enable ==

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users.users.myuser.useDefaultShell = true;

</nowiki>}}

== Aliases ==

You can set aliases for all shells via:

{{File|3=environment.shellAliases = {

rebuild = "sudo nixos-rebuild switch --flake /etc/nixos/#nixos";

};|name=/etc/nixos/configuration.nix|lang=nix}}

== Using a different shell in nix-shell and nix develop ==

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* Nested shells will require you to type <code>exit</code> twice, once to leave the inner shell and once to exit the Nix shell environment itself.

* Potential for alias conflicts as overriding commands can introduce unintended side effects in scripts or other tooling that expects the standard behavior.

== Using Flakes ==

If you are using [[Flakes]] with fish, the 'command-not-found' error message will not work correctly, but can be fixed by disabling the builtin Nix <code>command-not-found</code> program:<ref>https://github.com/NixOS/nixpkgs/issues/425613#issuecomment-3076081921</ref>

{{File|3=programs.command-not-found.enable = false;|name=/etc/nixos/configuration.nix|lang=nix}}

== See also ==

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* [[Nushell]]

* [[Zsh]]

* [[Flakes]]

== References ==

[[Category:Configuration]]

[[Category:Software]]

[[Category:Shell]]

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-A shell is a program that translates text commands (like {{ic|ls}}, {{ic|vim}}, {{ic|reboot}} etc) into instructions for your computer. The default shell on NixOS is [[bash]], but it can be easily changed.
+A [https://en.wikipedia.org/wiki/Unix_shell shell] is a program that translates text commands (like {{ic|ls}}, {{ic|vim}}, {{ic|reboot}} etc) into instructions for your computer. The default shell on NixOS is [[bash]], but it can be easily changed.
-{{note|[[Zsh]] is used here as an example. You can use other shells, e.g. {{ic|fish}} or {{ic|nushell}}.}}
+{{note|[[Zsh]] is used here as an example. You can use other shells, e.g. [[Fish]] or [[Nushell]].}}
 == Enable ==
@@ Line 39: / Line 39: @@
 users.users.myuser.useDefaultShell = true;
 </nowiki>}}
+== Aliases ==
+You can set aliases for all shells via:
+{{File|3=environment.shellAliases = {
+  rebuild = "sudo nixos-rebuild switch --flake /etc/nixos/#nixos";
+};|name=/etc/nixos/configuration.nix|lang=nix}}
 == Using a different shell in nix-shell and nix develop ==
@@ Line 75: / Line 81: @@
 * Nested shells will require you to type <code>exit</code> twice, once to leave the inner shell and once to exit the Nix shell environment itself.
 * Potential for alias conflicts as overriding commands can introduce unintended side effects in scripts or other tooling that expects the standard behavior.
+== Using Flakes ==
+If you are using [[Flakes]] with fish, the 'command-not-found' error message will not work correctly, but can be fixed by disabling the builtin Nix <code>command-not-found</code> program:<ref>https://github.com/NixOS/nixpkgs/issues/425613#issuecomment-3076081921</ref>
+{{File|3=programs.command-not-found.enable = false;|name=/etc/nixos/configuration.nix|lang=nix}}
 == See also ==
@@ Line 80: / Line 90: @@
 * [[Nushell]]
 * [[Zsh]]
+* [[Flakes]]
+== References ==
 [[Category:Configuration]]
 [[Category:Software]]
 [[Category:Shell]]