cd /etc/yum.repos.d/
sudo wget https://download.opensuse.org/repositories/shells:fish/RHEL_7/shells:fish.repo
sudo yum install fish
echo /usr/local/bin/fish | sudo tee -a /etc/shells
2019-05-13
cd /etc/yum.repos.d/
sudo wget https://download.opensuse.org/repositories/shells:fish/RHEL_7/shells:fish.repo
sudo yum install fish
echo /usr/local/bin/fish | sudo tee -a /etc/shells