Fish 安装

wget https://github.com/fish-shell/fish-shell/releases/download/4.8.1/fish-4.8.1-linux-x86_64.tar.xz

tar -xf fish-4.8.1-linux-x86_64.tar.xz

sudo mv fish /usr/local/bin

echo "/usr/local/bin/fish" | sudo tee -a /etc/shells

cat /etc/shells

chsh -s /usr/local/bin/fish