Use the COMPRESS command to reorganize the contents of  a  dictionary
 file.   The new dictionary file will probably be smaller than the old
 file, since only the directories and data definitions are copied, not
 the   unused   free  space.   Only  valid  dictionary  files  may  be
 compressed.  You must  use  the  FIX  command  to  repair  a  corrupt
 dictionary file before you can compress it.

 To compress the main dictionary file, you  need  VMS  SYSPRV  or  VMS
 BYPASS privilege.  To compress a subdictionary file, you need only be
 the owner of the file.

 Command Syntax:

 COMPRESS input-file-specification output-file-specification

Additional information available:

parameters

 input-file-specification

 Names the dictionary file you want to copy.  It  is  a  standard  VMS
 file  specification.   Wildcards are not permitted.  The default file
 extension is .DIC.


 output-file-specification

 Names  the  new  dictionary  file.   It  is  a  standard   VMS   file
 specification.   Wildcards  are  not  permitted.   The  default  file
 extension is .DIC.  You can use the same name for the output file and
 the  input  file.   If  you  do,  CDDV  creates an output file with a
 version number one higher than that of the input file.