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Editorial Team
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Asked: 2026-06-10T03:56:24+00:00

As a normal user I can get the version of OS X with the

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As a normal user I can get the version of OS X with the command

$ defaults read loginwindow SystemVersionStampAsString

However, if I run the command as root it fails:

$ sudo defaults read loginwindow SystemVersionStampAsString
2012-08-22 18:51:06.941 defaults[427:1707] 
The domain/default pair of (loginwindow, SystemVersionStampAsString) does not exist

Any clues?

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1 Answer

  1. Editorial Team

    There’s a command line tool called ‘sw_vers’:

    $ sw_vers

    It should print out the version information; for example:

    ProductName:    OS X
ProductVersion: 10.3
BuildVersion:   7A100
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