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sccs-comb(1)                     User Commands                    sccs-comb(1)



NAME
       sccs-comb, comb - combine SCCS deltas

SYNOPSIS
       /usr/ccs/bin/comb [-os] [-csid-list] [-psid] s.filename...

DESCRIPTION
       comb  generates  a  shell script (see sh(1)) that you can use to recon-
       struct the indicated s.files.  This script is written to  the  standard
       output.

       If  a  directory  name is used in place of the s.filename argument, the
       comb command applies to  all  s.files  in  that  directory.  Unreadable
       s.files  produce  an error; processing continues with the next file (if
       any). The use of `-' as the  s.filename  argument  indicates  that  the
       names  of  files are to be read from the standard input, one s.file per
       line.

       If no options are specified, comb preserves only the most recent (leaf)
       delta  in  a branch, and the minimal number of ancestors needed to pre-
       serve the history.

OPTIONS
       The following options are supported:

       -o              For each `get -e' generated, access  the  reconstructed
                       file  at the release of the delta to be created. Other-
                       wise, the reconstructed file is accessed  at  the  most
                       recent ancestor. The use of -o may decrease the size of
                       the reconstructed s.file. It may also alter  the  shape
                       of the delta tree of the original file.



       -s              Generate scripts to gather statistics, rather than com-
                       bining deltas. When run, the shell scripts report:  the
                       file  name,  size (in blocks) after combining, original
                       size (also in blocks), and the percentage size  change,
                       computed by the formula:



                       100 * ( original - combined ) / original



                       This  option  can  be  used to calculate the space that
                       will be saved, before actually doing the combining.



       -csid-list      Include the indicated list of deltas.  All other deltas
                       are omitted. sid-list is a comma-separated list of SCCS
                       delta IDs (SIDs). To specify a range of deltas,  use  a
                       `-'  separator  instead of a comma, between two SIDs in
                       the list.



       -pSID           The SID of the oldest delta to be preserved.



FILES
       s.COMB                  reconstructed  SCCS file



       comb?????               temporary file



ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:


       tab()    allbox;    cw(2.750000i)|     cw(2.750000i)     lw(2.750000i)|
       lw(2.750000i).  ATTRIBUTE TYPEATTRIBUTE VALUE AvailabilitySUNWsprot


SEE ALSO
       sccs(1), sccs-admin(1), sccs-cdc(1), sccs-delta(1), sccs-help(1), sccs-
       prs(1), sccs-prt(1), sccs-rmdel(1),  sccs-sccsdiff(1),  what(1),  sccs-
       file(4), attributes(5)

DIAGNOSTICS
       Use the SCCS help command for explanations (see sccs-help(1)).

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  actu-
       ally be larger than the original.




SunOS 5.10                        1 Nov 1999                      sccs-comb(1)