Short: Amiga stream editor
Uploader: email@example.com (Thomas Richter)
Author: firstname.lastname@example.org (Thomas Richter)
Requires: AmigaOs 3.0 or better
SED takes an input file, checks each line of this file against a pattern supplied on the command line, and generates a new line from this pattern match in the destination. This could either mean that the matching line is removed completely from the output, replaced by a different line, or changed according to the specifications of SED.
SED.lha is the filename. If needed I can send you a copy.