"Ed is the standard text editor." (1991) (gnu.org)

> Of course, on the system I administrate, vi is symlinked to ed. > Emacs has been replaced by a shell script which 1) Generates a syslog > message at level LOG_EMERG; 2) reduces the user's disk quota by 100K; > and 3) RUNS ED!!!!!!

It's always a joy to rediscover the wisdom of conscientious sysadmins.