How To Install g++-9 on Ubuntu 20.04
Introduction
In this tutorial we learn how to install g++-9 on Ubuntu 20.04.
What is g++-9
g++-9 is:
This is the GNU C++ compiler, a fairly portable optimizing compiler for C++. Task: ubuntu-mate-core, ubuntu-mate-desktop Build-Essential: yes
Package: g++-9 Architecture: amd64 Version: 9.3.0-10ubuntu2 Priority: optional Section: devel Source: gcc-9 Origin: Ubuntu Maintainer: Ubuntu Core developers [email protected] Original-Maintainer: Debian GCC Maintainers [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 27985 Provides: c++-compiler, c++abi2-dev Depends: gcc-9-base (= 9.3.0-10ubuntu2), gcc-9 (= 9.3.0-10ubuntu2), libstdc++-9-dev (= 9.3.0-10ubuntu2), libc6 (>= 2.14), libgmp10 (>= 2:5.0.1~), libisl22 (>= 0.15), libmpc3, libmpfr6 (>= 3.1.3), zlib1g (>= 1:1.1.4) Suggests: g++-9-multilib, gcc-9-doc (>= 8) Filename: pool/main/g/gcc-9/g++-9_9.3.0-10ubuntu2_amd64.deb Size: 8404272 MD5sum: 5007ef0d395d8594bf86a38fdb63cfee SHA1: 0a2f11522788b1151aaf86814d6448212e6af7ea SHA256: d3a28ee92e65e4f719fec86063bb83961b21fe52b737a967ba00936b32b72c12 Homepage: http://gcc.gnu.org/ Description-en: GNU C++ compiler This is the GNU C++ compiler, a fairly portable optimizing compiler for C++. Task: ubuntu-mate-core, ubuntu-mate-desktop Build-Essential: yes
There are three methods to install g++-9 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 g++-9 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install g++-9 using apt-get by running the following command:
sudo apt-get -y install g++-9
Install g++-9 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install g++-9 using apt by running the following command:
sudo apt -y install g++-9
Install g++-9 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 g++-9 using aptitude by running the following command:
sudo aptitude -y install g++-9
How To Uninstall g++-9 on Ubuntu 20.04
To uninstall only the g++-9 package we can use the following command:
sudo apt-get remove g++-9
Uninstall g++-9 And Its Dependencies
To uninstall g++-9 and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove g++-9
Remove g++-9 Configurations and Data
To remove g++-9 configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge g++-9
Remove g++-9 configuration, data, and all of its dependencies
We can use the following command to remove g++-9 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge g++-9
References
Summary
In this tutorial we learn how to install g++-9 package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.