Find Mac OSX version installed using AppleScript

Question

How can I find which version of OSX is installed on my Mac by using AppleScript? I want to install an app programatically and run different pkg files based on the version.

Answer 1

Here is how to get OSX version in AppleScript, using built-in functions:

set sysinfo to system info
set osver to system version of sysinfo

On OS X Mavericks the result is "10.9".

One-liner: set osver to system version of (system info)