sccs-comb(1) User Commands sccs-comb(1)
sccs-comb, comb - combine SCCS deltas
/usr/ccs/bin/comb [-os] [-csid-list] [-psid] s.filename...
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
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
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.
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
-pSID The SID of the oldest delta to be preserved.
s.COMB reconstructed SCCS file
comb????? temporary file
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
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-
Use the SCCS help command for explanations (see sccs-help(1)).
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)