The add-apt-repository command is vital for managing software sources in Ubuntu and Debian-based distributions, allowing users to add external repositories for software not in the default repositories. However, it might not be pre-installed in some variations like Raspberry Pi OS, leading to the “sudo: add-apt-repository: command not found” error.
$ sudo add-apt-repository ppa:ondrej/php sudo: add-apt-repository: command not found
This command is included in the software-properties-common package. To resolve the “command not found” error, users need to install this package using apt. The software-properties-common package provides essential tools for managing software sources, making it indispensable for system administrators.
By installing software-properties-common, users can regain the ability to add repositories and manage software sources efficiently. The process involves updating package information, optionally upgrading installed packages, and installing the software-properties-common package.
Steps to install add-apt-repository in Ubuntu or Debian:
- Launch the terminal.
- Update package information for apt.
$ sudo apt update [sudo] password for user: Hit:1 http://ports.ubuntu.com/ubuntu-ports jammy InRelease Get:2 http://ports.ubuntu.com/ubuntu-ports jammy-updates InRelease [114 kB] Get:3 http://ports.ubuntu.com/ubuntu-ports jammy-backports InRelease [99.8 kB] Get:4 http://ports.ubuntu.com/ubuntu-ports jammy-security InRelease [110 kB] Get:5 http://ports.ubuntu.com/ubuntu-ports jammy-updates/main arm64 Packages [520 kB] Get:6 http://ports.ubuntu.com/ubuntu-ports jammy-updates/main arm64 DEP-11 Metadata [91.6 kB] Get:7 http://ports.ubuntu.com/ubuntu-ports jammy-updates/universe arm64 Packages [213 kB] Get:8 http://ports.ubuntu.com/ubuntu-ports jammy-updates/universe arm64 DEP-11 Metadata [146 kB] Get:9 http://ports.ubuntu.com/ubuntu-ports jammy-backports/universe arm64 DEP-11 Metadata [12.5 kB] Get:10 http://ports.ubuntu.com/ubuntu-ports jammy-security/main arm64 DEP-11 Metadata [11.4 kB] Get:11 http://ports.ubuntu.com/ubuntu-ports jammy-security/universe arm64 DEP-11 Metadata [10.1 kB] Fetched 1,329 kB in 10s (127 kB/s) Reading package lists... Done Building dependency tree... Done Reading state information... Done 8 packages can be upgraded. Run 'apt list --upgradable' to see them.
- Upgrade installed packages (optional).
$ sudo apt upgrade --assume-yes
- Install software-properties-common using apt.
$ sudo apt install --assume-yes software-properties-common Reading package lists... Done Building dependency tree... Done Reading state information... Done The following additional packages will be installed: python3-software-properties unattended-upgrades Suggested packages: bsd-mailx default-mta | mail-transport-agent needrestart The following NEW packages will be installed: python3-software-properties software-properties-common unattended-upgrades 0 upgraded, 3 newly installed, 0 to remove and 8 not upgraded. Need to get 92.3 kB of archives. After this operation, 846 kB of additional disk space will be used. ##### snipped
This guide is tested on Ubuntu:
Version | Code Name |
---|---|
22.04 LTS | Jammy Jellyfish |
23.10 | Mantic Minotaur |
24.04 LTS | Noble Numbat |
![](https://www.simplified.guide/_media/page/author/shakir/mohd-shakir-zakaria.jpg?w=200&tok=d15487)
Mohd Shakir Zakaria is an experienced cloud architect with a strong development and open-source advocacy background. He boasts multiple certifications in AWS, Red Hat, VMware, ITIL, and Linux, underscoring his expertise in cloud architecture and system administration.
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