How to check Ubuntu version and 32/64 bit OS

To check your Ubuntu system version using the command line you will have to open the terminal (you can use this shortcut: Ctrl+Alt+T) and enter the command lsb_release -a

Check if you are running on a 32-bit or a 64-bit machine

On the other hand, if you just want to check if you are running on a 32 or 64-bit architecture:

  • you will want to type: getconf LONG_BIT

An alternative way to find Ubuntu version number  and if you have o 32 or 64  bits architecture

If you are a developer and do not always have access to the console. you can simply use the PHP info function:

  • you can use it like this: phpinfo(); 

just drop this into a new PHP file and you will get a full list of stuff installed on your server besides your Ubuntu version.