Usage: qdiff [OPTION]... FILE1 FILE2


diff options:
-b --byte-by-byte        compare files byte by byte, like 'cmp'
-f --no-heuristics       do not use heuristics to speed up large differing
                         blocks, note that the result is always correct but
                         with this option you may find a smaller number of
                         differing bytes
-m --min-match=NUM       allow resynchronisation only after a minimum of NUM
                         bytes match, this is an important parameter: lower
                         values may result in a more detailed analysis or in
                         useless results, higher values give a coarse analysis
                         but resynchronisation is more robust (range=[1..],
                         default=20)
-O --large-files         optimize disk access for large files on the same disk
                         (locks 16MB mem)

output modes:  (override automatic file type determination)
-a --formatted           print formatted ascii text, line by line
-u --unformatted         print unformatted ascii text, block by block
-x --hex                 print hex dump, block by block
-t --vertical            print one byte per line (ignores width)

output options:
-c --no-color            disable ansi coloring of output
-C --alt-colors          no bold ansi coloring (for SGI terminals and the like)
-w --width=NUM           output maximal NUM chars (default is terminal width)
-B --bytes-per-line=NUM  print NUM bytes/chars per line
-T --tab-size=TABSIZE    TABSIZE in formatted mode (range=[1..], default=8)
-l --line-numbers        print line numbers in formatted mode
-n --no-line-break       truncate (not break) lines in formatted mode
-L --show-lf-and-tab     show newline/tab as <LF>/<HT> in formatted mode
-S --show-space          show space as <SPC> in non hex modes
-U --unprintable=CHAR    print CHAR for unprintable chars in non hex modes
-H --control-hex         print control codes in hex (<x1B>, not <ESC>)
-A --alignment-marks     print -/+ before 32/64-bit words in hex mode
-e --stop-on-eof         stop when end of a file is reached in vertical mode
   --hide-match          do not print matches
   --hide-deletion       do not print deletions
   --hide-insertion      do not print insertions
   --hide-substitution   do not print substitutions
   --range-match         print match as byte range
   --range-deletion      print deletion as byte range
   --range-insertion     print insertion as byte range
   --range-substitution  print substitution as two byte ranges
-R --range               print everything as byte range

common options:
-v --verbose             verbose execution
-P --progress            show progress during work
-h --help                print this help message, then exit successfully
   --version             print version, then exit successfully

qdiff version 0.9.1
 *** (C) 1997-1999 by Johannes Overmann
 *** (C) 2008 by Tong Sun
comments, bugs and suggestions welcome: suntong001 at users.sourceforge.net
this program is distributed under the terms of the GNU General Public License version 2