04-26-2016
Quote:
Originally Posted by
alvinoo
Is there anyway to combine similar output together.
Yes!
But, before we can help you do that you need to CLEARLY describe what your inputs are, what "
combine similar output together" means, and show us exactly what output you hope to produce from a couple of sets of small sample input files.
Our mind reading capabilities do not seem to be nearly as good as you might have imagined.
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LEARN ABOUT REDHAT
interdiff
INTERDIFF(1) INTERDIFF(1)
NAME
interdiff - show differences between two diff files
SYNOPSIS
interdiff [-p n] [-U n] [-d PAT] [-Bbiqwz]
[--interpolate | --combine] [--no-revert-omitted]
diff1 diff2
interdiff {--help | --version}
DESCRIPTION
interdiff creates a unified format diff that expresses the difference between two diffs. The diffs must both be relative to the same files.
For best results, the diffs must have at least three lines of context.
To reverse a patch, use /dev/null for diff2.
To reduce the amount of context in a patch, use:
interdiff -U1 /dev/null patchfile
Since interdiff doesn't have the advantage of being able to look at the files that are to be modified, it has stricter requirements on the
input format than patch(1) does. The output of GNU diff will be okay, even with extensions, but if you intend to use a hand-edited patch it
might be wise to clean up the offsets and counts using recountdiff(1) first.
The diffs may be in context format. The output, however, will be in unified format.
OPTIONS
-h Ignored, for compatibility with older versions of interdiff. This option will go away soon.
-p n When comparing filenames, ignore the first n pathname components from both patches. (This is similar to the -p option to GNU
patch(1).)
-q Quieter output. Don't emit rationale lines at the beginning of each patch.
-U n Attempt to display n lines of context (requires at least n lines of context in both input files). (This is similar to the -U option
to GNU diff(1).)
-d pattern
Don't display any context on files that match the shell wildcard pattern. This option can be given multiple times.
Note that the interpretation of the shell wildcard pattern does not count slash characters or periods as special (in other words, no
flags are given to fnmatch). This is so that ``*/basename''-type patterns can be given without limiting the number of pathname com-
ponents.
-i Consider upper- and lower-case to be the same.
-w Ignore whitespace changes in patches.
-b Ignore changes in the amount of whitespace.
-B Ignore changes whose lines are all blank.
-z Decompress files with extensions .gz and .bz2.
--interpolate
Run as ``interdiff''. This is the default.
--combine
Run as ``combinediff''. See combinediff(1) for more information about how the behaviour is altered in this mode.
--no-revert-omitted
(For interpolation mode only) When a file is changed by the first patch but not by the second, don't revert that change.
--help Display a short usage message.
--version
Display the version number of interdiff.
EXAMPLES
Basic usage:
interdiff -z 3.2pre1.patch.gz 3.2pre2.patch.gz
Reversing a patch:
interdiff patch /dev/null
Reversing part of a patch (and ignoring the rest):
filterdiff -i file.c patchfile |
interdiff /dev/stdin /dev/null
BUGS
There are currently no known bugs in interdiff; but there are some caveats. If you find a bug, please report it (along with a minimal test
case) to Tim Waugh <twaugh@redhat.com>.
There are some sets of patches in which there is just not enough information to produce a proper interdiff. In this case, the strategy
employed is to revert the original patch and apply the new patch. This, unfortunately, means that interdiffs are not guaranteed to be
reversible.
SEE ALSO
combinediff(1)
AUTHOR
Tim Waugh <twaugh@redhat.com>.
Man page edited by Michael K. Johnson <johnsonm@redhat.com>.
patchutils 22 July 2002 INTERDIFF(1)