Manual page for SCCS-COMB(1)
sccs-comb, comb - combine SCCS deltas
SYNOPSIS
/usr/sccs/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 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 preserve the history.
OPTIONS
- -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 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.
- -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
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.5
[a manual with the abbreviation PUL]
DIAGNOSTICS
Use the
SCCS
help
command for explanations
(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
actually be larger than the original.
Created by unroff & hp-tools.
© somebody (See intro for details). All Rights Reserved.
Last modified 11/5/97