How to check Ubuntu version on EC2

Run the following command to get the version of PHP installed on Ubuntu machine:

 lsb_release -a

The output should look like this:

No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.4 LTS
Release:	20.04
Codename:	focal

In the above result 20.04 is the version of Ubuntu installed on our EC2 instance.