uniq(1) on last field

[Janos Dohanics]

Hello List,

Would you please help with a shell scripting problem. I have a samba
audit log file which after some parsing has entries like this:

Nov 5 10:26:29   testuser 10.10.10.72 pluto pwrite ok COMMON/Solidworks Parts & Assemblies/Filter Elements/~$Element 2-3187.SLDPRT
Nov 5 12:50:54   testuser 10.10.10.72 pluto pwrite ok COMMON/Solidworks Parts & Assemblies/Filter Elements/~$Element 2-3187.SLDPRT
Nov 5 14:05:52   testuser 10.10.10.72 pluto pwrite ok COMMON/Solidworks Parts & Assemblies/Filter Elements/~$Element 2-3187.SLDPRT
Nov 5 17:30:06   testuser 10.10.10.72 pluto pwrite ok COMMON/Solidworks Parts & Assemblies/Filter Elements/~$Element 2-3187.SLDPRT
Nov 5 09:32:48   testuser 10.10.10.72 pluto pwrite ok COMMON/Solidworks Parts & Assemblies/Gaskets/Flexitallic/10in/~$10in ANSI 600 Flexitallic.SLDPRT
Nov 5 09:32:48   testuser 10.10.10.72 pluto pwrite ok COMMON/Solidworks Parts & Assemblies/Gaskets/Flexitallic/20in/~$20in ANSI 600 Flexitallic.SLDPRT
Nov 5 09:32:32   testuser 10.10.10.72 pluto pwrite ok COMMON/Solidworks Parts & Assemblies/Lifting Lugs/~$54in Tower Lifting Lug.SLDPRT
Nov 5 10:31:29   testuser 10.10.10.72 pluto pwrite ok COMMON/Solidworks Parts & Assemblies/CDE - Beck/Tube Baffle Coalescer Model/~$40in OD Shell.SLDPRT
Nov 5 10:32:20   testuser 10.10.10.72 pluto pwrite ok COMMON/Solidworks Parts & Assemblies/CDE - Beck/Tube Baffle Coalescer Model/~$40in OD Shell.SLDPRT
Nov 5 12:54:43   testuser 10.10.10.72 pluto pwrite ok COMMON/Solidworks Parts & Assemblies/CDE - Beck/Tube Baffle Coalescer Model/~$40in OD Shell.SLDPRT
Nov 5 15:07:10   testuser 10.10.10.72 pluto pwrite ok COMMON/Solidworks Parts & Assemblies/CDE - Beck/Tube Baffle Coalescer Model/~$40in OD Shell.SLDPRT

I would like to use uniq(1) on the file name, which is of course the
last field if / is used as field separator. 

How can I tell uniq(1) the "last field" if I have variable number of
fields?

-- 
Janos Dohanics