Find SharePoint 2013 build version number - Powershell

Run following command from SharePoint management console.

(Get-spfarm).buildversion

Output would be looks like a

Major  Minor  Build  Revision
-----  -----  -----  --------
15     0      4771   1000

SharePoint 2013 Cumulative Update fails with error “The installation of this package failed”

When running SharePoint 2013 November 2015 CU (ubersrv2013-kb3101373-fullfile-x64-glb.exe),
I have got the following error 

 

“The installation of this package failed”

I checked event log for further information, but unfortunately I don’t find any…

Resolution

Download other two .cab files (ubersrv_1.cab & ubersrv_2.cab) to the same folder, where  .exe exists.
It’s funny, but this is true…J

FYI- I found the error log in temporary folder and the error says that, it is looking for some file and which is not available. So, I just tried copying other files to same folder and it worked well.