bdiff — Big diff
/usr/bin/bdiff filename1 filename2 [n] [-s]
bdiff is similar to diff, except that you can use it to process files that are too large for diff. A large file is a regular file whose size is greater than or equal to 2 Gbytes (2**31 bytes). A small file is a regular file whose size is less than 2 Gbytes.
If filename1 (filename2 ) is -, the standard input is read.
bdiff ignores lines common to the beginning of both files, splits the remainder of each file into n -line segments, and invokes diff on corresponding segments. If both optional arguments are specified, you must use them in the order indicated above.
The output of bdiff is exactly that of diff, with line numbers adjusted to make it look as if the ...