1GREPDIFF(1)                        Man pages                       GREPDIFF(1)
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NAME

6       grepdiff - show files modified by a diff containing a regex
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SYNOPSIS

9       grepdiff [-n] [--number-files] [-p n] [--strip=n] [--addprefix=PREFIX]
10                [-s] [-i PATTERN] [-x PATTERN] [-v] [-E] [[-H]
11                [--with-filename]] [[-h] [--no-filename]]
12                [--output-matching=WHAT] {[REGEX] [-f FILE]} [file...]
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14       grepdiff {[--help] [--version] [--list] [--filter ...]}
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DESCRIPTION

17       For each file modified by a patch, if the patch hunk contains the REGEX
18       then the file's name is printed.
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20       The regular expression is treated as POSIX Basic Regular Expression
21       syntax, unless the -E option is given in which case POSIX Extended
22       Regular Expression syntax is used.
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24       For example, to see the patches in my.patch which contain the regular
25       expression “pf_gfp_mask”, use:
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27       grepdiff pf_gfp_mask my.patch | \
28         xargs -rn1 filterdiff my.patch -i
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30       You can use both unified and context format diffs with this program.
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OPTIONS

33       -n     Display the line number that each patch begins at. If verbose
34              output is requested, each matching hunk is listed as well.
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36              For a description of the output format see lsdiff(1).
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38       --number-files
39              File numbers are listed, beginning at 1, before each filename.
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41       -p n   When matching, ignore the first n components of the pathname.
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43       --strip=n
44              Remove the first n components of the pathname before displaying
45              it.
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47       --addprefix=PREFIX
48              Prefix the pathname with PREFIX before displaying it.
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50       -s     Show file additions, modifications and removals. A file addition
51              is indicated by a “+”, a removal by a “-”, and a modification by
52              a “!”.
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54       -i PATTERN
55              Include only files matching PATTERN.
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57       -x PATTERN
58              Exclude files matching PATTERN.
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60       -E     Use POSIX Extended Regular Expression syntax.
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62       -H, --with-filename
63              Print the name of the patch file containing each match.
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65       -h, --no-filename
66              Suppress the name of the patch file containing each match.
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68       -f FILE
69              Read regular expressions from FILE, one per line.
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71       --output-matching=hunk|file
72              Display the matching hunk-level or file-level diffs.
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74       --help Display a short usage message.
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76       --version
77              Display the version number of grepdiff.
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79       --filter
80              Behave like filterdiff(1) instead.
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82       --list Behave like lsdiff(1) instead.
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SEE ALSO

85       filterdiff(1), lsdiff(1)
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AUTHOR

88       Tim Waugh <twaugh@redhat.com>.
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92patchutils                        2 Jul 2004                       GREPDIFF(1)
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