Fish - Revision history

Dafitt: bash: add check for `bash -c` before running fish

2026-10-26T20:06:53Z

bash: add check for `bash -c` before running fish

← Older revision		Revision as of 20:06, 26 October 2026
Line 171:		Line 171:
	Here is one solution, which launches fish unless the parent process is already fish:		Here is one solution, which launches fish unless the parent process is already fish:

	{{file\|~~/etc/nixos/configuration.nix\|nix\|~~		{{file\|3=<nowiki>
	<nowiki>
	programs.bash = {		programs.bash = {
	interactiveShellInit = ''		interactiveShellInit = ''
	# "check if parent process is not fish" && "make nested shells work properly"		# "check if parent process is not fish" && "make nested shells work properly" && "no `bash -c`
	if grep -qv fish /proc/$PPID/comm && [[ $SHLVL == [12] ]]; then		if grep -qv fish /proc/$PPID/comm && [[ $SHLVL == [12] ]] && [[ -z ''${BASH_EXECUTION_STRING} ]]; then
	# set $SHELL for better integration with programs like nix shell, tmux, etc.		# set $SHELL for better integration with programs like nix shell, tmux, etc.
	SHELL=${pkgs.fish}/bin/fish exec fish		SHELL=${pkgs.fish}/bin/fish exec fish
Line 182:		Line 181:
	'';		'';
	};		};
	</nowiki>		</nowiki>\|name=/etc/nixos/configuration.nix\|lang=nix}}
	}}

	For a more detailed explanation, please see the [https://wiki.archlinux.org/title/Fish#Modify_.bashrc_to_drop_into_fish aforementioned ArchWiki page].		For a more detailed explanation, please see the [https://wiki.archlinux.org/title/Fish#Modify_.bashrc_to_drop_into_fish aforementioned ArchWiki page].

Dangerflask: Fix broken anchor link

2026-10-07T20:27:03Z

Fix broken anchor link

← Older revision		Revision as of 20:27, 7 October 2026
Line 20:		Line 20:
	Replace <code>myuser</code> with the appropriate username.		Replace <code>myuser</code> with the appropriate username.

	{{warning\| [https://fishshell.com/docs/current/index.html#default-shell As noted in the fish documentation], using fish as your login shell (via <code>/etc/passwd</code>) may cause issues, particularly for the <code>root</code> user, because fish is not POSIX compliant. While using fish as the default shell for regular users is generaly safe, caution is still advised. See [[#Setting fish as default shell]] for recommendations and mitigations.}}		{{warning\| [https://fishshell.com/docs/current/index.html#default-shell As noted in the fish documentation], using fish as your login shell (via <code>/etc/passwd</code>) may cause issues, particularly for the <code>root</code> user, because fish is not POSIX compliant. While using fish as the default shell for regular users is generaly safe, caution is still advised. See [[#Setting fish as the default shell]] for recommendations and mitigations.}}

	=== Home Manager ===		=== Home Manager ===

Sapi: Replaced attr def with a inherit, does the same thing.

2026-06-28T22:48:47Z

Replaced attr def with a inherit, does the same thing.

← Older revision		Revision as of 22:48, 28 June 2026
Line 71:		Line 71:
	grc		grc
	# Use 3rd-party fish plugins manually packaged.		# Use 3rd-party fish plugins manually packaged.
	(pkgs.callPackage ../fish-colored-man.nix {~~buildFishPlugin =~~ pkgs.fishPlugins.buildFishPlugin; } )		(pkgs.callPackage ../fish-colored-man.nix { inherit (pkgs.fishPlugins) buildFishPlugin; } )
	];		];
	</nowiki>		</nowiki>

Astreaprtcl: Include a hint for people using Lix and using the interactive shell init script for launching fish

2026-06-26T09:31:36Z

Include a hint for people using Lix and using the interactive shell init script for launching fish

← Older revision		Revision as of 09:31, 26 June 2026
Line 186:		Line 186:

	For a more detailed explanation, please see the [https://wiki.archlinux.org/title/Fish#Modify_.bashrc_to_drop_into_fish aforementioned ArchWiki page].		For a more detailed explanation, please see the [https://wiki.archlinux.org/title/Fish#Modify_.bashrc_to_drop_into_fish aforementioned ArchWiki page].

			If you are using Lix, you can change the grep condition to <code>"fish\\|nix-shell"</code> so the <code>nix-shell</code> command still works, this is necessary since Lix forks before spawning the shell process so the parent process ends up being nix-shell and not fish.<ref>https://git.lix.systems/lix-project/lix/issues/1131#issuecomment-18341</ref>

	↵If you still want to set fish as the login shell, see [[Command Shell#Changing the default shell]].		↵If you still want to set fish as the login shell, see [[Command Shell#Changing the default shell]].

QuBe: Missing formatting

2026-06-22T12:23:32Z

Missing formatting

← Older revision		Revision as of 12:23, 22 June 2026
Line 136:		Line 136:
	It is possible to set fish as the interactive non-login shell for your terminal emulator without setting it as the login shell (the one in <code>/etc/passwd</code>).		It is possible to set fish as the interactive non-login shell for your terminal emulator without setting it as the login shell (the one in <code>/etc/passwd</code>).

	As this is usually a user-wise setting, to configure the terminal emulator you will need to either modify its config file, or use ~~home-manager~~		As this is usually a user-wise setting, to configure the terminal emulator you will need to either modify its config file, or use [[Home Manager]].

	==== Setting fish as default for Kitty ====		==== Setting fish as default for Kitty ====

QuBe: Fix missing line breaks

2026-06-22T12:22:22Z

Fix missing line breaks

← Older revision		Revision as of 12:22, 22 June 2026
Line 150:		Line 150:

	For use without home-manager, refer to https://sw.kovidgoyal.net/kitty/conf/#opt-kitty.shell and https://sw.kovidgoyal.net/kitty/conf/#opt-kitty.shell_integration.		For use without home-manager, refer to https://sw.kovidgoyal.net/kitty/conf/#opt-kitty.shell and https://sw.kovidgoyal.net/kitty/conf/#opt-kitty.shell_integration.

	'''Setting fish as default for Gnome Console'''		'''Setting fish as default for Gnome Console'''

	Using [[Home-manager\|Home Manager]]:		Using [[Home-manager\|Home Manager]]:

QuBe: Rework default shell section to present safe options before unsafe ones.

2026-06-22T12:17:00Z

Rework default shell section to present safe options before unsafe ones.

@@ Line 133: / Line 133: @@
 == Tips and tricks ==
-=== Setting fish as default shell ===
+=== Setting fish as the default shell ===
 Using fish as the the login shell can cause compatibility issues. For example, certain recovery environments such as systemd's emergency mode to be completely broken when fish was set as the login shell. ArchWiki presents an [https://wiki.archlinux.org/title/Fish#Modify_.bashrc_to_drop_into_fish alternative solution], keeping bash as the system shell but having it exec fish when run interactively.
 Here is one solution, which launches fish unless the parent process is already fish:
@@ Line 155: / Line 185: @@
 For a more detailed explanation, please see the [https://wiki.archlinux.org/title/Fish#Modify_.bashrc_to_drop_into_fish aforementioned ArchWiki page].
-'''Setting fish as default for Gnome Console'''
+↵If you still want to set fish as the login shell, see [[Command Shell#Changing the default shell]].
 ==== Running fish interactively with zsh as system shell on darwin ====

QuBe: Move "Disable man page generation" to its own sub-section. Was a sub-section of "Setting fish as default shell" which is unrelated.

2026-06-22T11:32:29Z

Move "Disable man page generation" to its own sub-section. Was a sub-section of "Setting fish as default shell" which is unrelated.

@@ Line 170: / Line 170: @@
 If you still want to set fish as the login shell, see [[Command Shell#Changing the default shell]].
 ==== Running fish interactively with zsh as system shell on darwin ====
@@ Line 195: / Line 187: @@
 };
 </syntaxhighlight>
 === Show that you are in a nix-shell ===

DHCP: /* Setting fish as default shell */ remove {{expansion}} as i've implemented the changes. If this change has broken something for you, please discuss at Talk:Fish#Suggested_bashrc_in_Fish#Setting_fish_as_default_shell_needs_revision

2026-05-13T21:16:55Z

Setting fish as default shell: remove {{expansion}} as i've implemented the changes. If this change has broken something for you, please discuss at Talk:Fish#Suggested_bashrc_in_Fish#Setting_fish_as_default_shell_needs_revision

← Older revision		Revision as of 21:16, 13 May 2026
Line 136:		Line 136:

	Using fish as the the login shell can cause compatibility issues. For example, certain recovery environments such as systemd's emergency mode to be completely broken when fish was set as the login shell. ArchWiki presents an [https://wiki.archlinux.org/title/Fish#Modify_.bashrc_to_drop_into_fish alternative solution], keeping bash as the system shell but having it exec fish when run interactively.		Using fish as the the login shell can cause compatibility issues. For example, certain recovery environments such as systemd's emergency mode to be completely broken when fish was set as the login shell. ArchWiki presents an [https://wiki.archlinux.org/title/Fish#Modify_.bashrc_to_drop_into_fish alternative solution], keeping bash as the system shell but having it exec fish when run interactively.

	~~{{Expansion}}~~

	Here is one solution, which launches fish unless the parent process is already fish:		Here is one solution, which launches fish unless the parent process is already fish:

DHCP: /* Running fish interactively with zsh as system shell on darwin */ added {{outdated}} banner because of the changes made in my previous edit.

2026-05-13T21:12:44Z

Running fish interactively with zsh as system shell on darwin: added {{outdated}} banner because of the changes made in my previous edit.

← Older revision		Revision as of 21:12, 13 May 2026
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	==== Running fish interactively with zsh as system shell on darwin ====		==== Running fish interactively with zsh as system shell on darwin ====

			{{outdated\|date=May 14, 2026\|reason=I've updated the interactiveShellInit snippet that this section refers to. Either the following paragraph should be reworded or the provided zsh config be modified. For more context, please see my corresponding [https://wiki.nixos.org/w/index.php?title=Fish&oldid=31760 edit] and the linked talk page.\|talk=Talk:Fish#Suggested_bashrc_in_Fish#Setting_fish_as_default_shell_needs_revision}}

	Zsh users on darwin will need to use a modified version of the above snippet. As written, it presents two incompatibilities. First, being BSD-derived, MacOS's <code>ps</code> command accepts different options. Second, this is a script intended for bash, not zsh. MacOS uses zsh as its default shell.		Zsh users on darwin will need to use a modified version of the above snippet. As written, it presents two incompatibilities. First, being BSD-derived, MacOS's <code>ps</code> command accepts different options. Second, this is a script intended for bash, not zsh. MacOS uses zsh as its default shell.