Fish
Install fish can be done with the following commands:
sudo apt-add-repository ppa:fish-shell/release-3
sudo apt update
sudo apt install fish
Then, if you wish, you set the default shell to fish.
chsh -s /usr/local/bin/fish
Install fish can be done with the following commands:
sudo apt-add-repository ppa:fish-shell/release-3
sudo apt update
sudo apt install fish
Then, if you wish, you set the default shell to fish.
chsh -s /usr/local/bin/fish