How do I check which version of operating system is currently installed?

macOS Command Line Interface

There’s a simple built-in tool to discover the current version of macOS1 from the command line: sw_vers

The result will look something like this:

$ sw_vers ProductName: Mac OS X ProductVersion: 10.6.4 BuildVersion: 10F569

If you would like to see the OS version, there's a flag for that:

$ sw_vers -productVersion 10.6.4

macOS GUI

  1. Select the Apple Logo (Menu) in the far left corner of the top panel on the desktop.
  2. Select About this Mac.

Linux (Debian/Ubuntu)

From a Debian Linux-based OS, like Ubuntu, two commands will tell you about your system:

uname -a and cat /etc/lsb-release

Here’s what the latter command might output:

$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=15.04 DISTRIB_CODENAME=vivid DISTRIB_DESCRIPTION="Ubuntu 15.04"

MacStadium Customer Dashboard

Another way to verify which operating system is currently running on your dedicated server is to log into your customer dashboard. Once you've selected a server you can view the installed operating system on the bottom left alongside it'S hardware configuration as well as it's IP address.

1. macOS may be interchangeable with OS X, the name used for previous versions of Apple's Mac operating system.

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