xdeltadir(1) [suse man page]
XDeltadir(1) General Commands Manual XDeltadir(1) NAME
xdeltadir - Invoke XDeltadir SYNOPSIS
xdeltadir subcommand [ operand... ] DESCRIPTION
XDeltadir is a perl script that wraps around the XDelta program. XDeltadir provides the ability to generate deltas between files in the two directories and later apply those deltas. It operates similar to the diff and patch commands, but works on binary files stored in two different directories and does not produce a human readable output. XDeltadir has two subcommands, delta and patch. Delta accepts two directories and produces a delta, while patch accepts the original direc- tory and a delta and produces the other directory. As opposed to the the diff(1) format, which can usually be reversed, these deltas are one way. Subcommands Each subcommand will be detailed seperately. In general, any input file may be compressed with gzip(1) and XDelta program called from XDeltadir will automatically uncompress it into a temporary location before examining the file. This temporary location is either the value of the environment variable, if set, or "/tmp". Unless turned off, XDelta always verifies the integrity of reconstructed files with MD5 checksums. By default, XDelta compresses constructed deltas. Delta The delta subcommand has the following synopsis: xdeltadir delta from_dir to_dir patch_dir Computes a deltas for the files from from_dir to to_dir and writes them to patch_dir Patch The patch subcommand has the following synopsis: xdeltadir patch patch_dir from_dir to_dir Applies patches from patch_dir to files from from_dir The from files must be identical to the ones used to create the deltas. Its MD5 checksum is used to verify this condition. The constructed files and directories will be written to to_dir All the directories must exist before running the xdeltadir. SEE ALSO
xdelta (1) IDENTIFICATION
Author: Radim Gelner, <radim.gelner@suse.cz> Manual Page Revision: 1.0; Release Date: Fri Jan 26 11:53:23 CET 2001 Copyright (C) 2001 XDeltadir(1)
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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 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
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. -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: +-----------------------------+-----------------------------+ | 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), 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)