grepdiff(1)


NAME

   grepdiff - show files modified by a diff containing a regex

SYNOPSIS

   grepdiff [[-n] | [--line-number]] [[-N] | [--number-files]] [[-p n] |
            [--strip-match=n]] [--strip=n] [--addprefix=PREFIX]
            [--addoldprefix=PREFIX] [--addnewprefix=PREFIX] [[-s] |
            [--status]] [[-i PATTERN] | [--include=PATTERN]] [[-I FILE] |
            [--include-from-file=FILE]] [[-x PATTERN] |
            [--exclude=PATTERN]] [[-X FILE] | [--exclude-from-file=FILE]]
            [[-# RANGE] | [--hunks=RANGE]] [--lines=RANGE] [[-FRANGE] |
            [--files=RANGE]] [--annotate] [--as-numbered-lines=WHEN]
            [--format=FORMAT] [--remove-timestamps] [[-v] | [--verbose]]
            [[-z] | [--decompress]] [[-E] | [--extended-regexp]] [[-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, --line-number
       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).

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

   -p n, --strip-match=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. This will
       override any individual settings specified with the --addoldprefix
       or --addnewprefix options.

   --addoldprefix=PREFIX
       Prefix pathnames for old or original files in the output by PREFIX.

   --addnewprefix=PREFIX
       Prefix pathnames for updated or new files in the output by PREFIX.

   -s
       Show file additions, modifications and removals. A file addition is
       indicated by a "+", a removal by a "-", and a modification by a
       "!".

   -i PATTERN, --include=PATTERN
       Include only files matching PATTERN.

   -I FILE, --include-from-file=FILE
       Include only files matching any pattern listed in FILE, one pattern
       per line. All other lines in the input are suppressed.

   -x PATTERN --exclude=PATTERN
       Exclude files matching PATTERN.

   -X FILE, --exclude-from-file=FILE
       Exclude files matching any pattern listed in FILE, one pattern per
       line. All other lines in the input are displayed.

   -# RANGE, --hunks=RANGE
       Only include hunks within the specified RANGE. Hunks are numbered
       from 1, and the range is a comma-separated list of numbers or
       "first-last" spans, optionially preceeded by a modifier 'x' which
       inverts the entire range; either the first or the last in the span
       may be omitted to indicate no limit in that direction.

   --lines=RANGE
       Only list hunks that contain lines from the original file that lie
       within the specified RANGE. Lines are numbered from 1, and the
       range is a comma-separated list of numbers or "first-last" spans,
       optionially preceeded by a modifier 'x' which inverts the entire
       range; either the first or the last in the span may be omitted to
       indicate no limit in that direction.

   -F=RANGE, --files=RANGE
       Only list files indicated by the specified RANGE. Files are
       numbered from 1 in the order they appear in the patch input, and
       the range is a comma-separated list of numbers or "first-last"
       spans, optionially preceeded by a modifier 'x' which inverts the
       entire range; either the first or the last in the span may be
       omitted to indicate no limit in that direction.

   --annotate
       Annotate each hunk with the filename and hunk number.

   --as-numbered-lines=before|after
       Instead of a patch fragment, display the lines of the selected
       hunks with the line number of the file before (or after) the patch
       is applied, followed by a TAB character and a colon, at the
       beginning of each line. Each hunk except the first will have a line
       consisting of "..."  before it.

   --format=unified|context
       Use specified output format.

   --remove-timestamps
       Do not include file timestamps in the output.

   -z, --decompress
       Decompress files with extensions .gz and .bz2.

   -E, --extended-regexp
       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, --file=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>
       Package maintainer





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