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comb(1)

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

NAME
       sccs-comb, comb - combine SCCS deltas

SYNOPSIS
       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. Otherwise, the
                     reconstructed  file is accessed at the most recent ances‐
                     tor. The use of -o can decrease the size  of  the  recon‐
                     structed s.file. It can 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 is
                     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(7) for descriptions of the following attributes:

       tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE  TYPEAT‐
       TRIBUTE VALUE _ Availabilitydeveloper/build/make


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(5), attributes(7)

DIAGNOSTICS
       Use the sccs-help command for explanations of SCCS commands. See  sccs-
       help(1).

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

Solaris 11.4                      23 Mar 2011                     sccs-comb(1)
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