How To Install command-not-found on Ubuntu 20.04
Introduction
In this tutorial we learn how to install command-not-found on Ubuntu 20.04.
What is command-not-found
command-not-found is:
This package will install a handler for command_not_found that looks up programs not currently installed but available from the repositories. Task: standard
Package: command-not-found Architecture: all Version: 20.04.2 Priority: standard Section: admin Origin: Ubuntu Maintainer: Michael Vogt [email protected] Original-Maintainer: Zygmunt Krynicki [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 35 Depends: python3-commandnotfound (= 20.04.2) Suggests: snapd Filename: pool/main/c/command-not-found/command-not-found_20.04.2_all.deb Size: 5240 MD5sum: e0a92a618c94f359e6ed4f178ef5e798 SHA1: addf392df5022cadb18ed43a532d761adcf7cb65 SHA256: a16aeab1e7c7d74d91509bd1722715f11b41572ff21de2ec9dfb8739f71452a2 Description-en: Suggest installation of packages in interactive bash sessions This package will install a handler for command_not_found that looks up programs not currently installed but available from the repositories. Task: standard
There are three methods to install command-not-found on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install command-not-found Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install command-not-found using apt-get by running the following command:
sudo apt-get -y install command-not-found
Install command-not-found Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install command-not-found using apt by running the following command:
sudo apt -y install command-not-found
Install command-not-found Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install command-not-found using aptitude by running the following command:
sudo aptitude -y install command-not-found
How To Uninstall command-not-found on Ubuntu 20.04
To uninstall only the command-not-found package we can use the following command:
sudo apt-get remove command-not-found
Uninstall command-not-found And Its Dependencies
To uninstall command-not-found and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove command-not-found
Remove command-not-found Configurations and Data
To remove command-not-found configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge command-not-found
Remove command-not-found configuration, data, and all of its dependencies
We can use the following command to remove command-not-found configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge command-not-found
References
Summary
In this tutorial we learn how to install command-not-found package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
