FAQs on RHEL Tutorial 3 (RHEL Basics) : Linux Tutorials : Basics of Linux

Question 1

1. What is RHEL and why is it important for Linux back-end programming?

Accepted Answer

Ans. RHEL stands for Red Hat Enterprise Linux. It is a widely used operating system in the enterprise environment. RHEL provides a stable and secure platform for Linux back-end programming by offering long-term support, regular updates, and a robust set of tools and libraries.

Question 2

2. How can I install RHEL on my system?

Accepted Answer

Ans. To install RHEL on your system, you can download the ISO image from the official Red Hat website. Then, create a bootable USB or DVD using the ISO image and follow the installation wizard. Make sure to have a valid subscription or a trial subscription to activate RHEL.

Question 3

3. What are the basic Linux commands that every back-end programmer should know?

Accepted Answer

Ans. Every back-end programmer should be familiar with basic Linux commands like ls (list files and directories), cd (change directory), mkdir (create a directory), rm (remove files and directories), cp (copy files and directories), and grep (search for a pattern in files).

Question 4

4. How can I compile and run a C or C++ program in RHEL?

Accepted Answer

Ans. To compile a C or C++ program in RHEL, you need to have the GCC compiler installed. Use the gcc command followed by the name of the source file and the -o flag to specify the output executable file. For example, 'gcc program.c -o program'. To run the compiled program, use the './' prefix followed by the program's name. For example, './program'.

Question 5

5. How can I update packages and perform system maintenance in RHEL?

Accepted Answer

Ans. In RHEL, you can use the yum package manager to update packages and perform system maintenance. Use the command 'sudo yum update' to update all installed packages. To install new packages, use the command 'sudo yum install package-name'. To remove packages, use the command 'sudo yum remove package-name'. Additionally, you can use the 'yum list' command to view installed packages and the 'yum search keyword' command to search for packages.

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