According to Wikipedia Friendly interactive shell is:
Is a Unix shell that attempts to be more interactive and user-friendly than those with a longer history or those formulated as function-compatible replacements for the aforementioned. The design goal of fish is to give the user a rich set of powerful features in a way that is easy to discover, remember, and use.
The project site can be found at fishshell.com.
Installing Fish
OS X
Using [[https://brew.sh/|Homebrew]] (which I recommend) and have configured your environment as noted in the macOS Setup Guide, then you can install Fish as you would any other package:
brew install fish
Once installation has completed, add Fish to /etc/shells, which will require an administrative password:
echo “/usr/local/bin/fish” | sudo tee -a /etc/shells
To make Fish your default shell:
chsh -s /usr/local/bin/fish
=== Debian ===
to get Fish we have to do some work:
echo ‘deb http://download.opensuse.org/repositories/shells:/fish:/release:/2/Debian_9.0/ /’ >> /etc/apt/sources.list.d/fish.list
wget -qO – http://download.opensuse.org/repositories/shells:fish:release:2/Debian_9.0/Release.key | apt-key add –
apt-get update
apt-get install fish -y
make fish default shell
sudo chsh -s /usr/bin/fish
Yes for some reason this needs the sudo!
=== Other users ===
if you edit ”/etc/passwd” as root look for the line for the user you want and change the shell path there: ”/usr/bin/fish”
==== Ubuntu ====
sudo apt-add-repository ppa:fish-shell/release-2
sudo apt-get update
sudo apt-get install fish -y
===== Configuration =====
mkdir -p ~/.config/fish
nano ~/.config/fish/config.fish
add the line ”set -g -x PATH /usr/local/bin $PATH”
fish_config
fish_update_completions
If you decide Fish isn’t for you and want to permanently revert your default shell back to Bash:
chsh -s /bin/bash
===== Aliases =====
alias name=’what you want it to do’
funcsave name
So a worked example is:
alias ls=’ls -FhlsA’
funcsave ls
aliases are saved in a file in the folder ”~/.config/fish/functions/”
{{tag>guide fish macOS}}
