Setup brew on mac
install brew (https://brew.sh/)
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
if brew command not found
install brew (https://brew.sh/)
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
if brew command not found