grepdiff

GREPDIFF(1)                                                        GREPDIFF(1)



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

SYNOPSIS
       grepdiff [-n] [-p n] [--strip=n] [--addprefix=PREFIX] [-s] [-i PATTERN] [-x PATTERN] {REGEX} [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.


       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.


       -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 addition
              is indicated by a ``+'', a removal by a ``-'', and  a  modifica-
              tion by a ``!''.


       -i PATTERN
              Include only files matching PATTERN.


       -x PATTERN
              Exclude files matching PATTERN.


       --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                        10 May 2002                      GREPDIFF(1)