DifSsed

Short:        Generate diffs, do stream editing.
Author:       Chuck Forsberg
Architecture: m68k-amigaos
Source:       Fish collection

Dif produces a difference file which lists the line by line differences
between any two text files.  These differences can be fed to ssed (a stream
type editor), along with the original text file, to remotely reproduce the
other (new) file.