One of the very first questions a Linux user asks is about confirming the release (OS version) in use. Knowing release helps with highlighting software dependencies and compatibilities, confirms availability of certain features in your OS and simplifies the process of system administration – certain releases have a preferred set of commands for day-to-day management.
With CentOS being a rather popular server grade Linux distro, I can see that many visitors of my blog look for the same guidance quite regularly: check CentOS version. This article introduces 5 of the most common ways to do just that.