Options to cmp

Below is a summary of the options that Diff'nPatch accepts for byte by byte comparison. Note that the output of this command is limited to 12000 bytes: this is a limitation on the number of bytes output by the comparison command, not on the number of bytes compared. The maximum number of bytes to compare can be set with the max num of bytes option.

-b
--print-bytes
Print the differing bytes. Display control bytes as a ^ followed by a letter of the alphabet and precede bytes that have the high bit set with M- (which stands for "meta").
-i skip
--ignore-initial=skip
Ignore any differences in the first skip bytes of the input files. Treat files with fewer than skip bytes as if they are empty.
-n count
--bytes=count
Compare at most count input bytes.