COMB(1)                                                   COMB(1)



     NAME
          comb - combine SCCS deltas

     SYNOPSIS
          comb files

     DESCRIPTION
          comb generates a shell procedure [see sh(1)] which, when
          run, will reconstruct the given SCCS files.  The
          reconstructed files will, hopefully, be smaller than the
          original files.  The arguments may be specified in any
          order, but all keyletter arguments apply to all named SCCS
          files.  If a directory is named, comb behaves as though each
          file in the directory were specified as a named file, except
          that non-SCCS files (last component of the path name does
          not begin with s.)  and unreadable files are silently
          ignored.  If a name of - is given, the standard input is
          read; each line of the input is taken to be the name of an
          SCCS file to be processed; non-SCCS files and unreadable
          files are silently ignored.  The generated shell procedure
          is written on the standard output.

          The keyletter arguments are as follows.  Each is explained
          as though only one named file is to be processed, but the
          effects of any keyletter argument apply independently to
          each named file.  each get -e generated, this argument
          causes the reconstructed file to be accessed at the release
          of the delta to be created, otherwise the reconstructed file
          would be accessed at the most recent ancestor.  Use of the
          -o keyletter may decrease the size of the reconstructed SCCS
          file.  It may also alter the shape of the delta tree of the
          original file.  argument causes comb to generate a shell
          procedure which, when run, will produce a report giving, for
          each file:  the file name, size (in blocks) after combining,
          original size (also in blocks), and percentage change
          computed by:
                     100 * (original - combined) / original
          It is recommended that before any SCCS files are actually
          combined, one should use this option to determine exactly
          how much space is saved by the combining process.  SCCS
          IDentification string (SID) of the oldest delta to be
          preserved.  All older deltas are discarded in the
          reconstructed file.  list (see get(1) for the syntax of a
          list) of deltas to be preserved.  All other deltas are
          discarded.

          If no keyletter arguments are specified, comb will preserve
          only leaf deltas and the minimal number of ancestors needed
          to preserve the tree.

     FILES
          s.COMB        The name of the reconstructed SCCS file.



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     COMB(1)                                                   COMB(1)



          comb?????     Temporary.

     SEE ALSO
          admin(1), delta(1), get(1), prs(1), sccsfile(4).
          help(1), sh(1) in the User's Reference Manual.

     DIAGNOSTICS
          Use help(1) for explanations.

     BUGS
          comb may rearrange the shape of the tree of deltas.  It may
          not save any space; in fact, it is possible for the
          reconstructed file to actually be larger than the original.

     ORIGIN
          AT&T V.3







































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