DIFF.HELPCMD.D1

DIFF                                                                CMS MODULE
 
CMS port of the GNU DIFF command. Compare files line by line.
+----------------------------------------------------------------------------+
| DIFF     | [options] fileid1 fileid2                                       |
+----------------------------------------------------------------------------+
where:
 
fileid1, fileid2
          must be entered on the command line using "." to separate the
          components, for example.
 
          profile.exec.a
 
Options:
 
Mandatory arguments to long options are mandatory for short options too.
 
--normal
       output a normal diff (the default)
 
-q, --brief
       report only when files differ
 
-s, --report-identical-files
       report when two files are the same
 
-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
-e, --ed
       output an ed script
 
-n, --rcs
       output an RCS format diff
 
-y, --side-by-side
       output in two columns
 
-W, --width=NUM
       output at most NUM (default 130) print columns
 
--left-column
       output only the left column of common lines
 
--suppress-common-lines
       do not output common lines
 
-p, --show-c-function
       show which C function each change is in
 
-F, --show-function-line=RE
       show the most recent line matching RE
 
--label LABEL
       use LABEL instead of file name and timestamp (can be repeated)
 
-t, --expand-tabs
       expand tabs to spaces in output
 
-T, --initial-tab
       make tabs line up by prepending a tab
 
--tabsize=NUM
       tab stops every NUM (default 8) print columns
 
--suppress-blank-empty
       suppress space or tab before empty output lines
 
-l, --paginate
       pass output through 'pr' to paginate it
 
-r, --recursive
       recursively compare any subdirectories found
 
--no-dereference
       don't follow symbolic links
 
-N, --new-file
       treat absent files as empty
 
--unidirectional-new-file
       treat absent first files as empty
--ignore-file-name-case
       ignore case when comparing file names
 
--no-ignore-file-name-case
       consider case when comparing file names
 
-x, --exclude=PAT
       exclude files that match PAT
 
-X, --exclude-from=FILE
       exclude files that match any pattern in FILE
 
-S, --starting-file=FILE
       start with FILE when comparing directories
 
--from-file=FILE1
       compare FILE1 to all operands; FILE1 can be a directory
 
--to-file=FILE2
       compare all operands to FILE2; FILE2 can be a directory
 
-i, --ignore-case
       ignore case differences in file contents
 
-E, --ignore-tab-expansion
       ignore changes due to tab expansion
 
-Z, --ignore-trailing-space
       ignore white space at line end
 
-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 where lines are all blank
 
-I, --ignore-matching-lines=RE
       ignore changes where all lines match RE
 
-a, --text
       treat all files as text
 
--strip-trailing-cr
       strip trailing carriage return on input
 
-D, --ifdef=NAME
       output merged file with '#ifdef NAME' diffs
 
--GTYPE-group-format=GFMT
       format GTYPE input groups with GFMT
--line-format=LFMT
       format all input lines with LFMT
 
--LTYPE-line-format=LFMT
       format LTYPE input lines with LFMT
 
       These format options provide fine-grained control over the output
 
       of diff, generalizing -D/--ifdef.
 
LTYPE is 'old', 'new', or 'unchanged'.
       GTYPE is LTYPE or 'changed'.
 
       GFMT (only) may contain:
 
%<     lines from FILE1
 
%>     lines from FILE2
 
%=     lines common to FILE1 and FILE2
 
%[-][WIDTH][.[PREC]]{doxX}LETTER
       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
%(A=B?T:E)
       if A equals B then T else E
 
       LFMT (only) may contain:
 
%L     contents of line
 
%l     contents of line, excluding any trailing newline
 
%[-][WIDTH][.[PREC]]{doxX}n
       printf-style spec for input line number
 
       Both GFMT and LFMT may contain:
 
%%     %
 
%c'C'  the single character C
%c'\OOO'
       the character with octal code OOO
 
C      the character C (other characters represent themselves)
 
-d, --minimal
       try hard to find a smaller set of changes
 
--horizon-lines=NUM
       keep NUM lines of the common prefix and suffix
 
--speed-large-files
       assume large files and many scattered small changes
 
--color[=WHEN]
       colorize  the  output;  WHEN can be 'never', 'always', or 'auto'
       (the default)
--palette=PALETTE
       the colors to use when --color is active; PALETTE  is  a
       colon-separated list of terminfo capabilities
 
--help display this help and exit
 
-v, --version
       output version information and exit
 
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
FILE(s). If  a FILE is '-', read standard input.  Exit status is 0 if inputs
are the same, 1 if different, 2 if trouble.