fish-config/docs/manual/11-troubleshooting.md

title, manTitle, sidebar, helpKeywords

title	manTitle	sidebar	helpKeywords
Troubleshooting	11. TROUBLESHOOTING	order 15	troubleshooting troubleshoot faq help uninstall revert

This section covers common issues, their solutions, and how to safely revert changes or uninstall the configuration entirely.

Uninstalling / Reverting to Backup

The installation step backs up any existing config to ~/.config/fish.bak. To revert:

rm -rf ~/.config/fish
mv ~/.config/fish.bak ~/.config/fish

If no backup exists, remove the directory and let Fish regenerate a default config on next launch:

rm -rf ~/.config/fish
fish -c 'fish_config theme choose "Fish default"'

Clean up files generated outside the config directory:

rm -f ~/.local/bin/paru ~/.local/bin/yay        # AUR log wrappers
rm -f ~/.local/share/man/man1/fish-config.1     # man page symlink
rm -f ~/.config/fish/.logging_disabled           # C5 sentinel

Erase universal variables set by this config:

for v in (set -Un | string match '__fish_config*')
    set -Ue $v
end
for v in __done_min_cmd_duration __done_notification_urgency_level
    set -Ue $v
end
for v in (set -Un | string match 'sponge_*')
    set -Ue $v
end

The ~/.terminal_history/ log directory contains your session logs. Remove it only if you do not want to keep them.

Fish Version Requirement

This config requires Fish 4.x or newer. Check your version:

fish --version

Run fish-deps to see a status report — an outdated Fish shows ⚠ with an upgrade message.

Upgrading Fish by distribution:

# Arch / AUR
pacman -S fish          # or paru -S fish

# Ubuntu / Debian (PPA)
sudo apt-add-repository ppa:fish-shell/release-4
sudo apt update && sudo apt install fish

# Fedora
sudo dnf install fish

# macOS
brew install fish

For other systems or building from source, see https://fishshell.com.

Disable Session Logging

Disable all logging and capture (scrollback, tmux/zellij pane logs, AUR helper wrappers, Kitty watcher):

set -U __fish_config_op_logging off

Or toggle it interactively: run config-settings and flip the Logging row.

This takes effect immediately in all running shells — no restart needed. The sentinel file, wrapper removal, and pipe-pane teardown happen automatically.

Re-enable:

set -Ue __fish_config_op_logging

See C5 — Logging and Capture for the full component breakdown.

Change or Disable the Greeting

This config suppresses the distro greeting (e.g. CachyOS fastfetch) by default. To let the distro greeting through:

set -U __fish_config_op_greeting off

To set a custom greeting, define fish_greeting in your local.fish:

# in $__fish_user_dots_path/local.fish
function fish_greeting
    echo "Hello, world!"
end

The first-run welcome banner runs exactly once. To re-trigger it (e.g. for testing):

set -Ue __fish_config_first_run_complete

See C6 — Greeting and First-Run UI for details.

Secrets and Machine-Local Configuration

Machine-specific config goes in $__fish_user_dots_path/local.fish (defaults to ~/.config/.user-dots/fish/local.fish). Secrets go in secrets.fish in the same directory.

If local.fish is not loading, verify the path:

echo $__fish_user_dots_path
test -f "$__fish_user_dots_path/local.fish"; and echo exists; or echo missing

Change the path via variable or TUI:

set -U __fish_user_dots_path /new/path/to/dots/fish

Or run config-settings, navigate to the Paths page, and edit "Dots path".

The user-dots convenience symlink in the config directory tracks this path. Disable it with:

set -U __fish_user_dots_symlink false

See Personalization for the full local.fish / secrets.fish layout.

Tool Init Does Nothing (Return Sentinel)

Symptom: you ran a tool's setup command (e.g. starship init fish >> ~/.config/fish/config.fish) and nothing changed.

Cause: config.fish ends with a return guard. Any lines appended after it are never executed.

Fix: create a dedicated conf.d/ file instead of appending to config.fish:

# ~/.config/fish/conf.d/mytool.fish
mytool init fish | source

All existing integrations (starship, zoxide, direnv) already have conf.d/ files. See Return Sentinel for background.

Missing Dependencies

Run fish-deps (defaults to fish-deps status) to see what is installed and what is missing. Common symptoms and their missing tools:

Symptom                                  Missing tool
─────────────────────────────────────────────────────
ls output has no icons or colors         eza (or lsd)
cd does not remember directories         zoxide
cat shows no syntax highlighting         bat
fzf keybindings do nothing               fzf
Starship prompt not appearing            starship

Install missing dependencies interactively:

fish-deps install

Or install everything missing and update what is installed:

fish-deps sync

See Dependency Catalog for the full list grouped by tier (required, integrations, recommended).

Vi Mode Keybindings

This config enables Vi mode by default (via C3 overrides), replacing the standard Emacs-style bindings. If Vi mode interferes with your workflow, override it in local.fish:

# $__fish_user_dots_path/local.fish
fish_default_key_bindings

This restores Emacs-style bindings without disabling the rest of C3 (bang-bang, autopair, starship prompt, pager settings, etc.).

To disable the entire C3 category (Vi mode and all other key/environment overrides):

set -U __fish_config_op_overrides off

See C3 — Key and Environment Overrides for the full list of what C3 controls.

Minimal Mode / Disabling Opinionated Features

Disable all opinionated features at once:

set -U __fish_config_opinionated 0

This turns off all six categories (aliases, auto-exec, overrides, integrations, logging, greeting) — leaving a clean shell with only PATH, XDG variables, and local.fish sourcing.

Disable a single category:

set -U __fish_config_op_aliases off         # C1 — command shadows
set -U __fish_config_op_autoexec off        # C2 — startup side-effects
set -U __fish_config_op_overrides off       # C3 — key/env overrides
set -U __fish_config_op_integrations off    # C4 — terminal integrations
set -U __fish_config_op_logging off         # C5 — logging and capture
set -U __fish_config_op_greeting off        # C6 — greeting

Keep one category active under a master disable:

set -U __fish_config_opinionated 0
set -U __fish_config_op_aliases 1           # only C1 stays on

Re-enable everything:

set -Ue __fish_config_opinionated

Or use the interactive TUI: config-settings.

See Opinionated Components (Minimal Mode) for the full component reference tables.

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