Library /sys$common/syshlp/DFUHLP.HLB
DFU, SET, Qualifiers, /IDENT
 *Conan The Librarian 

   /IDENT=identifier or uic

   Modifies the file-owner. This command can also be used on open
   files (such as INDEXF.SYS). /IDENT cannot be combined with
   /OWNER_UIC
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