First, to use the command line, you have to open up a command tool (also referred to as a “command prompt”). How to do this will depend on which version of Linux you’re running.

The rm command is used to delete files and folders. In conjunction with r (recursive) and f (force), you would delete everything from the root folder (/), thus rendering your system unusable.

To check your Red Hat version, check within the /etc/issue file. To find the version, type: $ cat /etc/issue Method 5: Use lsb_release Command LSB stands for Linux Standard Base. The lsb_release ...