bdiff
file1 file2 [options]Compare file1 with file2 and report the differing lines. bdiff splits the files and then runs diff, allowing it to act on files that would normally be too large to handle. bdiff reads standard input if one of the files is -
. See also diff.
Split each file into n-line segments (default is 3500). This option must be listed first.
-s
Suppress error messages from bdiff (but not from diff).