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comb man page

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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  reconstruct the indicated s.files.  This script is writ-
     ten to the standard output.

     If a directory name is used in place of the s.filename argu-
     ment, the comb command applies to all s.files in that direc-
     tory. Unreadable s.files produce an error;  processing  con-
     tinues  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 preserve 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. Otherwise,  the  recon-
                     structed 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 combining 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.



SunOS 5.10           Last change: 1 Nov 1999                    1






User Commands                                        sccs-comb(1)



     -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  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWsprot                   |
    |_____________________________|_____________________________|


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), sccsfile(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 recon-
     structed file to actually be larger than the original.









SunOS 5.10           Last change: 1 Nov 1999                    2





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