# fish

The friendly interactive shell.

1. [TL;DR](#tldr)
1. [Configuration](#configuration)
1. [Prompt](#prompt)
1. [Further readings](#further-readings)
1. [Sources](#sources)

## TL;DR

```sh
# Install the shell.
apt install 'fish'
brew install 'fish'
zypper install 'fish'

# Start `fish` sessions.
fish
fish -Pil

# Change one's default shell to `fish`.
chsh -s (which fish)      # from `fish`
chsh -s "$(which fish)"   # from `{ba,z}sh`

# Open the web-based configuration interface.
fish_config
fish_config browse
```

## Configuration

Shell configuration file: `~/.config/fish/config.fish`.<br/>
`.fish` scripts in `~/.config/fish/conf.d/` are automatically executed **before** `config.fish`.

Configuration files are read at startup of every session, whether the shell is interactive and/or login.<br/>
Use `status --is-interactive` and `status --is-login` to discriminate between interactive/login shells, respectively:

```sh
if status --is-login
  fish_add_path ~/bin
end
```

`fish` offers a web-based configuration interface. Open it executing `fish_config`.

## Prompt

See [Starship] or Tide.

## Further readings

- [Website]
- [`bash`][bash]
- [`zsh`][zsh]
- [Starship] (prompt)
- [Oh My Fish][oh-my-fish]

## Sources

All the references in the [further readings] section, plus the following:

- [Documentation]
- [Github]

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  References
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<!-- In-article sections -->
[further readings]: #further-readings

<!-- Knowledge base -->
[bash]: bash.md
[oh-my-fish]: https://github.com/oh-my-fish/oh-my-fish
[starship]: starship.md
[zsh]: zsh.md

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<!-- Upstream -->
[documentation]: https://fishshell.com/docs/current/
[github]: https://github.com/fish-shell/fish-shell
[website]: https://fishshell.com/

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