installation:
yum instal zsh
change shell to ZSH:
chsh -s $(which zsh)
check installed version:
zsh --version
info: https://github.com/ohmyzsh/ohmyzsh
installation:
(requirement: Git)
sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"