You can read more about Oh-my-zsh here
sh -c "$(wget https://raw.githubusercontent.com/vitor-kato/my-zsh/master/script.sh -O -)"
git clone https://github.com/vitor-kato/my-zsh.git && cd my-zsh
On Unbutu/Debian OS
sudo apt install zsh
sh -c "$(wget https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh -O -)"
ln -sf $(pwd)/zshrc ~/.zshrc
Optional install syntax highlithing plugin
git clone https://github.com/zsh-users/zsh-syntax-highlighting.git ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-syntax-highlighting