Install Drush 7 for Drupal 7 on macOS X
You are Welcome! The Tutorial shows you Step-by-Step How to Install Drush Command Line Interface for Drupal 7 on Mac Mavericks 10.9 OS X Desktop.
Drush is a command line shell and Unix scripting interface for Drupal. If you are unfamiliar with shell scripting, reviewing the documentation for your shell (e.g. man bash) or reading an online tutorial (e.g. search for “bash tutorial”) will help you get the most out of Drush.
Open Terminal Window
(Press “Enter” to Execute Commands)
Install PHP5 Composer for macOSInstalling Composer on Mac
Installing Drush CLi for Drupal8 on macOS X.
composer global require drush/drush:dev-master
Insert Drush into User Path.
echo "export PATH=$PATH:$HOME/.composer/vendor/bin" > $HOME/.bashrc
Testing Drush Installation.
Getting Started with Drush 7 CLI CommandsDrush 7 Commands Quick Start