Do I Have Linux or Unix?

How do I know if I am using Linux or Unix?

How to find your Linux/Unix version

1. On command line: uname -a. On Linux, if the lsb-release package is installed: lsb_release -a. On many Linux distributions: cat /etc/os-release.
2. In GUI (depending on GUI): Settings – Details. System Monitor.

How do I know if I am using Linux?

Open a terminal program (get to a command prompt) and type uname -a. This will give you your kernel version, but might not mention the distribution your running. To find out what distribution of linux your running (Ex. Ubuntu) try lsb_release -a or cat /etc/*release or cat /etc/issue* or cat /proc/version.