How to Change RunLevel on CentOS 7 / RHEL 7

In Linux operating systems, specifically Redhat Enterprise Linux (RHEL) and CentOS, the method to change the runlevel via /etc/inittab has become obsolete as of RHEL 7 and CentOS 7. These…

How to Check Software or Packages Version in Linux

When working with Linux environment, it’s important to know the versions of various software and packages installed on your system. Knowing the software version helps you stay informed about updates,…