vintage_systems:ed_survival []

ed

ed is the standard text editor.

ed has two modes: command and input. By default it is in command mode. Use i or a to insert or append text and when finished input a . on a line all by itself to return to command mode.

A summary of ed commands

command		description
a		append text to the buffer
i		insert text at the current line in the buffer
p		print the current line - try 1p to print the first line
q		quit ed - to quit without saving, type q!
s		search/replace - try s/old/new
w		write out the buffer to disk - w filename
.		return to command mode from append or input mode

If you have made an error, ed will only respond with ?