How do I determine RHEL (Red Hat Enterprise Linux) version?

To determine the version of Red Hat Enterprise Linux (RHEL) that is installed on your system, you can use the "lsb_release" command. "lsb_release" is a utility that displays information about the Linux distribution, including the version number and release code name.

To determine the version of RHEL that is installed on your system, follow these steps:

1. Open a terminal and type the following command:

lsb_release -a

This command will display information about the Linux distribution, including the version number and release code name.

2. Look for the "Release" field in the output of the "lsb_release" command. This field will contain the version number of RHEL that is installed on your system. For example:

Release:	8.4

With these steps, you should be able to determine the version of RHEL that is installed on your system using the "lsb_release" command.

Note: "lsb_release" is part of the Linux Standard Base (LSB) specification, which is a set of standards that define the interface between an operating system and its applications. Consult the "lsb_release" documentation for more information on the available options and usage examples.