11-24-2009
Have you tried the -m flag?
Quote:
-m NUM, --max-count=NUM
Stop reading a file after NUM matching lines. If the input is standard input from a regular file, and NUM matching lines
are output, grep ensures that the standard input is positioned to just after the last matching line before exiting,
regardless of the presence of trailing context lines. This enables a calling process to resume a search. When grep
stops after NUM matching lines, it outputs any trailing context lines. When the -c or --count option is also used, grep
does not output a count greater than NUM. When the -v or --invert-match option is also used, grep stops after outputting
NUM non-matching lines.
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for example:
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for single word
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Hi,
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SDIFF(1) User Commands SDIFF(1)
NAME
sdiff - side-by-side merge of file differences
SYNOPSIS
sdiff [OPTION]... FILE1 FILE2
DESCRIPTION
Side-by-side merge of file differences.
-o FILE --output=FILE
Operate interactively, sending output to FILE.
-i --ignore-case
Consider upper- and lower-case to be the same.
-E --ignore-tab-expansion
Ignore changes due to tab expansion.
-b --ignore-space-change
Ignore changes in the amount of white space.
-W --ignore-all-space
Ignore all white space.
-B --ignore-blank-lines
Ignore changes whose lines are all blank.
-I RE --ignore-matching-lines=RE
Ignore changes whose lines all match RE.
--strip-trailing-cr
Strip trailing carriage return on input.
-a --text
Treat all files as text.
-w NUM --width=NUM
Output at most NUM (default 130) print columns.
-l --left-column
Output only the left column of common lines.
-s --suppress-common-lines
Do not output common lines.
-t --expand-tabs
Expand tabs to spaces in output.
--tabsize=NUM
Tab stops are every NUM (default 8) print columns.
-d --minimal
Try hard to find a smaller set of changes.
-H --speed-large-files
Assume large files and many scattered small changes.
--diff-program=PROGRAM
Use PROGRAM to compare files.
-v --version
Output version info.
--help Output this help.
If a FILE is `-', read standard input. Exit status is 0 if inputs are the same, 1 if different, 2 if trouble.
AUTHOR
Written by Thomas Lord.
REPORTING BUGS
Report bugs to: bug-diffutils@gnu.org GNU diffutils home page: <http://www.gnu.org/software/diffutils/> General help using GNU software:
<http://www.gnu.org/gethelp/>
COPYRIGHT
Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
The full documentation for sdiff is maintained as a Texinfo manual. If the info and sdiff programs are properly installed at your site,
the command
info diff
should give you access to the complete manual.
diffutils 2.9.19-4065 April 2010 SDIFF(1)