How To Install gfortran-9 on Ubuntu 20.04

In this tutorial we learn how to install gfortran-9 on Ubuntu 20.04. gfortran-9 is GNU Fortran compiler GNU Fortran compiler

Introduction

In this tutorial we learn how to install gfortran-9 on Ubuntu 20.04.

What is gfortran-9

gfortran-9 is:

This is the GNU Fortran compiler, which compiles Fortran on platforms supported by the gcc compiler. It uses the gcc backend to generate optimized code. Task: ubuntustudio-video

Package: gfortran-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: 27207 Provides: fortran95-compiler, gfortran-mod-15 Depends: gcc-9-base (= 9.3.0-10ubuntu2), gcc-9 (= 9.3.0-10ubuntu2), libgfortran-9-dev (= 9.3.0-10ubuntu2), libc6-dev (>= 2.13-0ubuntu6), libc6 (>= 2.14), libgmp10 (>= 2:5.0.1~), libisl22 (>= 0.15), libmpc3, libmpfr6 (>= 3.1.3), zlib1g (>= 1:1.1.4) Suggests: gfortran-9-multilib, gfortran-9-doc, libcoarrays-dev Filename: pool/main/g/gcc-9/gfortran-9_9.3.0-10ubuntu2_amd64.deb Size: 7914220 MD5sum: d784ae3e1b5a0a950d51290d863e3594 SHA1: 9b7c3655dcda66318f212994e01aaa5c2cafe37c SHA256: 5f0450d3f41671f5c68a249e19cd26fe0469288fe60662db11353e78e5731915 Homepage: http://gcc.gnu.org/ Description-en: GNU Fortran compiler This is the GNU Fortran compiler, which compiles Fortran on platforms supported by the gcc compiler. It uses the gcc backend to generate optimized code. Task: ubuntustudio-video

There are three methods to install gfortran-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 gfortran-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 gfortran-9 using apt-get by running the following command:

sudo apt-get -y install gfortran-9

Install gfortran-9 Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install gfortran-9 using apt by running the following command:

sudo apt -y install gfortran-9

Install gfortran-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 gfortran-9 using aptitude by running the following command:

sudo aptitude -y install gfortran-9

How To Uninstall gfortran-9 on Ubuntu 20.04

To uninstall only the gfortran-9 package we can use the following command:

sudo apt-get remove gfortran-9

Uninstall gfortran-9 And Its Dependencies

To uninstall gfortran-9 and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:

sudo apt-get -y autoremove gfortran-9

Remove gfortran-9 Configurations and Data

To remove gfortran-9 configuration and data from Ubuntu 20.04 we can use the following command:

sudo apt-get -y purge gfortran-9

Remove gfortran-9 configuration, data, and all of its dependencies

We can use the following command to remove gfortran-9 configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge gfortran-9

References

Summary

In this tutorial we learn how to install gfortran-9 package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.