Open your ~/.zshrc and /usr/local/bin path to $PATH
export PATH="/usr/local/bin:$PATH"
Link your app such as mvim and code(vscode) to /usr/local/bin
cd /usr/local/bin
ln -s /Applications/Visual Studio Code.app/Contents/Resources/app/bin/code code
ln -s /Applications/MacVim.app/Contents/bin/mvim mvim