grepdiff

GREPDIFF(1)							  GREPDIFF(1)



NAME
       grepdiff - show files modified by a diff containing a regex

SYNOPSIS
       grepdiff [-n] [--number-files] [-p n] [--strip=n] [--addprefix=PREFIX]
		[-s] [-i PATTERN] [-x PATTERN] [-v] [-E] [-H |
		--with-filename] [-h | --no-filename]
		[--output-matching=WHAT] {REGEX | -f FILE} [file...]

       grepdiff {--help | --version | --list | --filter ...}


DESCRIPTION
       For each file modified by a patch, if  the  patch  hunk	contains  the
       REGEX then the file’s name is printed.


       The  regular  expression	 is treated as POSIX Basic Regular Expression
       syntax, unless the -E option is given in	 which	case  POSIX  Extended
       Regular Expression syntax is used.


       For  example, to see the patches in my.patch which contain the regular
       expression ‘‘pf_gfp_mask’’, use:


	      grepdiff pf_gfp_mask my.patch | \
		xargs -rn1 filterdiff my.patch -i


       You can use both unified and context format diffs with this program.


OPTIONS
       -n     Display the line number that each patch begins at.  If  verbose
	      output is requested, each matching hunk is listed as well.

	      For a description of the output format see lsdiff(1).


       --number-files
	      File  numbers are listed, beginning at 1, before each filename.


       -p n   When matching, ignore the first n components of the pathname.


       --strip=n
	      Remove the first n components of the pathname before displaying
	      it.


       --addprefix=PREFIX
	      Prefix the pathname with PREFIX before displaying it.


       -s     Show  file  additions, modifications and removals. A file addi-
	      tion is indicated by a ‘‘+’’, a removal by a ‘‘-’’, and a modi-
	      fication by a ‘‘!’’.


       -i PATTERN
	      Include only files matching PATTERN.


       -x PATTERN
	      Exclude files matching PATTERN.


       -E     Use POSIX Extended Regular Expression syntax.


       -H, --with-filename
	      Print the name of the patch file containing each match.


       -h, --no-filename
	      Suppress the name of the patch file containing each match.


       -f FILE
	      Read regular expressions from FILE, one per line.


       --output-matching=hunk|file
	      Display the matching hunk-level or file-level diffs.


       --help Display a short usage message.


       --version
	      Display the version number of grepdiff.


       --filter
	      Behave like filterdiff(1) instead.


       --list Behave like lsdiff(1) instead.


SEE ALSO
       filterdiff(1), lsdiff(1)


AUTHOR
       Tim Waugh <twaugh@redhat.com>.



patchutils			  2 Jul 2004			  GREPDIFF(1)