RHEL BasedRocky Linux

How To Install Composer on Rocky Linux 9

Install Composer on Rocky Linux 9

In this tutorial, we will show you how to install Composer on Rocky Linux 9. For those of you who didn’t know, A composer is a command-line tool that is used to manage dependencies in PHP projects. It allows you to declare the libraries your project depends on and it will automatically manage (install/update) them for you. It functions as some sort of project manager that helps the programmer manage dependencies that will be used on a project-to-project basis.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the Composer on Rocky Linux. 9.


  • A server running one of the following operating systems: Rocky Linux 9.
  • It’s recommended that you use a fresh OS install to prevent any potential issues.
  • SSH access to the server (or just open Terminal if you’re on a desktop).
  • A non-root sudo user or access to the root user. We recommend acting as a non-root sudo user, however, as you can harm your system if you’re not careful when acting as the root.

Install Composer on Rocky Linux 9

Step 1. The first step is to update your system to the latest version of the package list. To do so, run the following commands:

sudo dnf check-update
sudo dnf install dnf-utils

Step 2. Installing PHP.

PHP Composer requires a minimum of PHP 7 and with that, we will install PHP 8 since the requirement is satisfied. Now install PHP using the dnf package manager as shown below:

sudo dnf install php

With the installation complete, verify the version of PHP installed as shown:

php -v

For additional resources on installing PHP, read the post below:

Step 3. Installing Composer on Rocky Linux 9.

By default, Composer is not available on Rocky Linux 9 base repository. Now run the following command below to download the Composer installer file from their official site using the wget command:

wget https://getcomposer.org/installer -O composer-installer.php

Next, run the downloaded composer installation file with the below command:

php composer-installer.php --filename=composer --install-dir=/usr/local/bin

Verify Composer Installation by running the command:

composer --version


[root@idroot.us ~]# composer
Do not run Composer as root/super user! See https://getcomposer.org/root for details
Continue as root/super user [yes]? y
  / ____/___  ____ ___  ____  ____  ________  _____
 / /   / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /
\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
Composer version 2.3.10 2022-10-12 16:36:11

  command [options] [arguments]

Congratulations! You have successfully installed Composer. Thanks for using this tutorial for installing Composer on your Rocky Linux 9 system. For additional help or useful information, we recommend you check the official Composer website.

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r00t is a seasoned Linux system administrator with a wealth of experience in the field. Known for his contributions to idroot.us, r00t has authored numerous tutorials and guides, helping users navigate the complexities of Linux systems. His expertise spans across various Linux distributions, including Ubuntu, CentOS, and Debian. r00t's work is characterized by his ability to simplify complex concepts, making Linux more accessible to users of all skill levels. His dedication to the Linux community and his commitment to sharing knowledge makes him a respected figure in the field.
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