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OpenSolaris 2009.06 - man page for gdiff (opensolaris section 1)

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DIFF(1) 				  User Commands 				  DIFF(1)

       diff - compare files line by line

       diff [OPTION]... FILES

       Compare files line by line.

       -i  --ignore-case
	      Ignore case differences in file contents.

	      Ignore case when comparing file names.

	      Consider case when comparing file names.

       -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 carriage return on input.

       -a  --text
	      Treat all files as text.

       -c  -C NUM  --context[=NUM]
	      Output NUM (default 3) lines of copied context.

       -u  -U NUM  --unified[=NUM]
	      Output NUM (default 3) lines of unified context.

       --label LABEL
	      Use LABEL instead of file name.

       -p  --show-c-function
	      Show which C function each change is in.

       -F RE  --show-function-line=RE
	      Show the most recent line matching RE.

       -q  --brief
	      Output only whether files differ.

       -e  --ed
	      Output an ed script.

	      Output a normal diff.

       -n  --rcs
	      Output an RCS format diff.

       -y  --side-by-side
	      Output in two columns.

       -W NUM  --width=NUM
	      Output at most NUM (default 130) print columns.

	      Output only the left column of common lines.

	      Do not output common lines.

       -D NAME	--ifdef=NAME
	      Output merged file to show `#ifdef NAME' diffs.

	      Similar, but format GTYPE input groups with GFMT.

	      Similar, but format all input lines with LFMT.

	      Similar, but format LTYPE input lines with LFMT.

       LTYPE is `old', `new', or `unchanged'.
	      GTYPE is LTYPE or `changed'.

	      GFMT may contain:

       %<     lines from FILE1

       %>     lines from FILE2

       %=     lines common to FILE1 and FILE2

	      printf-style spec for LETTER

	      LETTERs are as follows for new group, lower case for old group:

       F      first line number

       L      last line number

       N      number of lines = L-F+1

       E      F-1

       M      L+1

	      LFMT may contain:

       %L     contents of line

       %l     contents of line, excluding any trailing newline

	      printf-style spec for input line number

	      Either GFMT or LFMT may contain:

       %%     %

       %c'C'  the single character C

	      the character with octal code OOO

       -l  --paginate
	      Pass the output through `pr' to paginate it.

       -t  --expand-tabs
	      Expand tabs to spaces in output.

       -T  --initial-tab
	      Make tabs line up by prepending a tab.

       -r  --recursive
	      Recursively compare any subdirectories found.

       -N  --new-file
	      Treat absent files as empty.

	      Treat absent first files as empty.

       -s  --report-identical-files
	      Report when two files are the same.

       -x PAT  --exclude=PAT
	      Exclude files that match PAT.

       -X FILE	--exclude-from=FILE
	      Exclude files that match any pattern in FILE.

       -S FILE	--starting-file=FILE
	      Start with FILE when comparing directories.

	      Compare FILE1 to all operands.  FILE1 can be a directory.

	      Compare all operands to FILE2.  FILE2 can be a directory.

	      Keep NUM lines of the common prefix and suffix.

       -d  --minimal
	      Try hard to find a smaller set of changes.

	      Assume large files and many scattered small changes.

       -v  --version
	      Output version info.

       --help Output this help.

       FILES  are `FILE1 FILE2' or `DIR1 DIR2' or `DIR FILE...' or `FILE... DIR'.  If --from-file
       or --to-file is given, there are no restrictions on FILES.  If a FILE is `-',  read  stan-
       dard input.

       Written by Paul Eggert, Mike Haertel, David Hayes, Richard Stallman, and Len Tower.

       Report bugs to <bug-gnu-utils@gnu.org>.

       Copyright (C) 2002 Free Software Foundation, Inc.

       This program comes with NO WARRANTY, to the extent permitted by law.  You may redistribute
       copies of this program under the terms of the GNU General Public License.  For more infor-
       mation about these matters, see the file named COPYING.

       The  full  documentation for diff is maintained as a Texinfo manual.  If the info and diff
       programs are properly installed at your site, the command

	      info diff

       should give you access to the complete manual.

       See attributes(5) for descriptions of the following attributes:

       |Availability	    | SUNWgnu-diffutils |
       |Interface Stability | Uncommitted	|
       Source for GNU diffutils is available on http://opensolaris.org.

diffutils 2.8.1 			    April 2002					  DIFF(1)
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