Author: Peter Sussman Homepage: https://github.com/the8thbit/e Family: none? Platform: UNIX License: GNU AGPL v. 3+
Weighing in at about half the memory footprint of ed, e is the most minimalist text editor I am aware of. This is achieved through its ridiculously minimalist feature set. e has no output, and only takes four commands: save (ctrl+d), close (ctrl+f), seek left (ctrl+j), and seek right (ctrl+k). e only takes one command-line argument, the path of the file you want to edit. Part of my goal in writing e was to distil the concept of a text editor down to its bare minimum, where removing any functionality would change the fundamental nature of the software. Because of the heavy reliance on UNIX system APIs, e will only compile and run on UNIX and UNIX-like systems.
Another E was actually Ecce, but was known as E because the early operating systems on which it ran generally used single-letter commands (like D for Delete, C for Compile, E for Edit, etc).