Installing Drush provides a way of managing your Drupal installs using a familiar method, the command line. Drush can simplify your life by allowing you to perform admin duties.
In this tutorial, we will be using Composer as our package manager, as it is necessary to install Drush’s dependencies. It does take at least 1 GB worth of memory, so be sure to have that before starting this tutorial.
Step 1: Updating
As a matter of good practices, we’ll update our system
Step 2: Install Zip
Most likely you’ll already have the zip command but if you don’t go ahead and install.
apt-get install zip unzip
Step 3: Install Curl
apt-get install curl php7-cli git
Step 4: Install Composer
curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer
Step 5: Install Drush
Using the following command will install the newest version of Drush, at this time it is
composer global require drush/drush
Alternatively, you can install the Drush version of your choice by appending the version needed. If you’d like Drush 8 use…
composer global require drush/drush:8
Step 6: Add Drush Directory to Your Path
If performing the version check in Step 6 gives you the message of “command not found” then open your .bashrc file and input the following into the file
#path for Drush
Run source show recognize the changes to the file.
Step 7: Verify the Installation of Drush
You’ll be able to verify the version of the Drush install and other useful information by running the following command.
PHP binary : /usr/bin/php7.0
PHP config : /etc/php/7.0/cli/php.ini
PHP OS : Linux
Drush script : /root/.composer/vendor/bin/drush
Drush version : 9.5.2
Drush temp : /tmp
Drush configs : /root/.composer/vendor/drush/drush/drush.yml
Drupal root : /root/.composer/vendor/drush/drush/sut