Fish - Revision history

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
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	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DHCP: /* Running fish interactively with zsh as system shell on darwin */ added {{outdated}} banner because of the changes made in my previous edit.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Running fish interactively with zsh as system shell on darwin: added {{outdated}} banner because of the changes made in my previous edit.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			{{outdated\|date=May 14, 2026\|reason=I've updated the interactiveShellInit snippet that this section refers to.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.

DHCP: /* Setting fish as default shell */ Update suggested .bashrc to use simpler, more correct script to drop into FIsh. Discussion talk page: Talk:Fish#Suggested_bashrc_in_Fish#Setting_fish_as_default_shell_needs_revision. This script it adapted from ArchWiki (where I help to maintain it). I've also replaced mention of gentoo wiki with the Arch solution, but we didn't use the version from gentoo wiki anyway.

2026-05-13T21:08:20Z

Setting fish as default shell: Update suggested .bashrc to use simpler, more correct script to drop into FIsh. Discussion talk page: Talk:Fish#Suggested_bashrc_in_Fish#Setting_fish_as_default_shell_needs_revision. This script it adapted from ArchWiki (where I help to maintain it). I've also replaced mention of gentoo wiki with the Arch solution, but we didn't use the version from gentoo wiki anyway.

← Older revision		Revision as of 21:08, 13 May 2026
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	=== Setting fish as default shell ===		=== Setting fish as 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. ~~This limitation is noted on the~~ [https://wiki.~~gentoo~~.org/~~wiki~~/Fish#~~Caveats Gentoo wiki]~~. ~~There they present an~~ alternative, 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}}		{{Expansion}}
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	programs.bash = {		programs.bash = {
	interactiveShellInit = ''		interactiveShellInit = ''
	if ~~[[ $(${pkgs.procps}~~/~~bin~~/~~ps --no-header --pid=~~$PPID ~~--format=~~comm~~) != "fish"~~ && ~~-z ''~~$~~{BASH_EXECUTION_STRING}~~ ]]		# "check if parent process is not fish" && "make nested shells work properly"
	~~then~~		if grep -qv fish /proc/$PPID/comm && [[ $SHLVL == [12] ]]; then
	~~shopt -q login_shell && LOGIN_OPTION='--login' \|\| LOGIN_OPTION~~=""		# set $SHELL for better integration with programs like nix shell, tmux, etc.
	~~exec~~ ${pkgs.fish}/bin/fish ~~$LOGIN_OPTION~~		SHELL=${pkgs.fish}/bin/fish exec fish
	fi		fi
	'';		'';
Line 155:		Line 155:
	}}		}}

	~~Note that if you use the copy button to the right of the above code block~~, ~~there will be a unicode space before~~ the ~~<code>!=<~~/~~code> on line 3 of the snippet that you will need to change to a non-unicode space before executing this in your shell~~.		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'''		'''Setting fish as default for Gnome Console'''

DHCP: update a link to use https; refine highlighted text for the gentoo wiki url

2026-05-13T20:23:00Z

update a link to use https; refine highlighted text for the gentoo wiki url

← Older revision		Revision as of 20:23, 13 May 2026
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	{{DISPLAYTITLE:fish}}		{{DISPLAYTITLE:fish}}
	fish, the [~~http~~://fishshell.com/ Friendly Interactive Shell], is a [[Command Shell\|command shell]] designed around user-friendliness.		fish, the [https://fishshell.com/ Friendly Interactive Shell], is a [[Command Shell\|command shell]] designed around user-friendliness.

	== Installation ==		== Installation ==
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	=== Setting fish as default shell ===		=== Setting fish as 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. This limitation is noted on the [https://wiki.gentoo.org/wiki/Fish#Caveats Gentoo] ~~wiki~~. There they present an alternative, 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. This limitation is noted on the [https://wiki.gentoo.org/wiki/Fish#Caveats Gentoo wiki]. There they present an alternative, keeping bash as the system shell but having it exec fish when run interactively.

	{{Expansion}}		{{Expansion}}

Pigeon: /* Setting fish as default shell */

2026-01-24T18:44:15Z

Setting fish as default shell

← Older revision		Revision as of 18:44, 24 January 2026
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	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. This limitation is noted on the [https://wiki.gentoo.org/wiki/Fish#Caveats Gentoo] wiki. There they present an alternative, 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. This limitation is noted on the [https://wiki.gentoo.org/wiki/Fish#Caveats Gentoo] wiki. There they present an alternative, 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:

Pigeon: /* Show that you are in a nix-shell */ add note regarding IN_NIX_SHELL variable when using new `nix shell` command

2026-01-24T18:05:11Z

Show that you are in a nix-shell: add note regarding IN_NIX_SHELL variable when using new `nix shell` command

← Older revision		Revision as of 18:05, 24 January 2026
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	)		)
	</syntaxhighlight>		</syntaxhighlight>

			{{Note\|This won't work with the new {{ic\|nix shell}} command, as it doesn't set {{ic\|IN_NIX_SHELL}} variable. You can instead check if {{ic\|$SHLVL}} is {{ic\|> 1}}, or check if {{ic\|$PATH}} contains paths from {{ic\|/nix/store}} (which get added at the beginning of the {{ic\|$PATH}} when you enter nix shell). See https://github.com/NixOS/nix/issues/6677 for more context and workarounds.}}

	and <code>$nix_shell_info</code> to the echo in that function, e.g.:		and <code>$nix_shell_info</code> to the echo in that function, e.g.:

Bitestring: The dconf path and the fish command was incorrect. I have corrected the case to make it work.

2025-11-08T14:27:33Z

The dconf path and the fish command was incorrect. I have corrected the case to make it work.

← Older revision		Revision as of 14:27, 8 November 2025
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	dconf = {		dconf = {
	enable = true;		enable = true;
	settings."org/gnome/~~console~~" = {		settings."org/gnome/Console" = {
	shell = [ "~~FISH~~" ];		shell = [ "fish" ];
	};		};
	};		};

Bheeee at 06:56, 5 November 2025

2025-11-05T06:56:00Z

← Older revision		Revision as of 06:56, 5 November 2025
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	Some users suffer from slow build due to fish enabling `documentation.man.generateCaches`. You may force false.		Some users suffer from slow build due to fish enabling `documentation.man.generateCaches`. You may force false.
	documentation.man.generateCaches = false'';''		documentation.man.generateCaches = false'';''

			For home-manager users, man cache need to be disabled in programs

			programs.man.generateCaches = false'';''

	==== Running fish interactively with zsh as system shell on darwin ====		==== Running fish interactively with zsh as system shell on darwin ====

PowerUser64: Add note about unicode space when copying code snippet -- I think this may be a bug in MediaWiki?

2025-10-27T09:32:12Z

Add note about unicode space when copying code snippet -- I think this may be a bug in MediaWiki?

← Older revision		Revision as of 09:32, 27 October 2025
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	</nowiki>		</nowiki>
	}}		}}

			Note that if you use the copy button to the right of the above code block, there will be a unicode space before the <code>!=</code> on line 3 of the snippet that you will need to change to a non-unicode space before executing this in your shell.

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

PowerUser64: Undo revision 27964 by PowerUser64 (talk)

2025-10-27T09:22:25Z

Undo revision 27964 by PowerUser64 (talk)

← Older revision		Revision as of 09:22, 27 October 2025
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	};		};
	</nowiki>		</nowiki>
	~~\|name=\|lang=~~}}		}}

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