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Thursday, May 6, 2021

What is build-essential Ubuntu, how to install and use it? – Linux Hint

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The build-essentials packages are meta-packages that are necessary for compiling software. They include the GNU debugger, g++/GNU compiler collection, and some more tools and libraries that are required to compile a program. For example, if you need to work on a C/C++ compiler, you need to install essential meta-packages on your system before starting the C compiler installation. When installing the build-essential packages, some other packages such as G++, dpkg-dev, GCC and make, etc. also install on your system.

Above, we have described what the build-essential packages are. In the rest of the article, we will explain how to install and use build-essentials on Ubuntu systems. All terminal commands we have executed on Ubuntu 20.04 system in this article. Let’s dive into the depths!

Installation and use of Build Essential tools on Ubuntu 20.04 system

The build-essential meta-packages can be installed directly from the Ubuntu official repository. These packages are available in the default Ubuntu 20.04 system repository. Just install meta-packages of build-essential tools through the apt package manager. Open the terminal application through the keyboard shortcut ‘Ctrl + Alt + t’.

Update apt repository

Now, you need to update the packages repository before installing the build-essential tools. Type the following command to update the apt repository index:

Install build-essential

Install the build-essential packages by running the below-given command:

$ sudo apt install build-essential

After executing the above command, the following result will be shown on the terminal:

Check GCC version

Once the installation is finished, verify the installation of these packages by checking the GCC version on your system with the following command:

The installed version of GCC to be displayed on the terminal, which is also shown in the following screenshot:

Now, all GCC compiler libraries and tools have been installed on Ubuntu 20.04 system. However, you can run a C program for testing the installation.

Create C program

Let’s create a C program by using the nano editor as follows:

Now, add the below-mentioned lines of code in this nano file:

// testprogram.c

#include <stdio.h>

int main() {
    printf(“Test, Program!n);
    return 0;
}

Compiling the C program

Save the above file and make an executable file by using the following command:

$ gcc testprogram.c -o testprogram

Run C program

Now, execute the following command to run the C program:

The following output is shown on the terminal after running the above C program:

Conclusion

We have explained the installation of build-essential tools in this article. We have explored what is build-essential and how to install and use it on Ubuntu 20.04 system. Now, you should have the proper understanding of the build-essential and how to install it on the Ubuntu system. The above commands can also be applied to the older Ubuntu versions. To learn more about these required packages, must visit their official website for a better understanding.

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