This script gives several shortcuts and help for different programs, such as Vim, git, nmap, Tmux...
git clone https://github.com/davidriff/RiffHelpMe
sudo cp ./RiffHelpMe/RiffHelpMe.sh /usr/local/bin/RiffHelpMe
sudo cp -ar ./RiffHelpMe/RiffHelpMe/ /opt/
Open terminal and type: RiffHelpMe