.ref-BSD-3/usr/doc/edtut/e0

.RP
.TL
A Tutorial Introduction to the \s-2UNIX\s+2 Text Editor
.AU
Brian W. Kernighan
.AI
.MH
.AB
.PP
Almost all text input on
the
.UX
operating system
is done with
the text-editor
.IT ed .
This memorandum is a tutorial guide
to help beginners get started
with text editing.
.PP
Although it does not cover everything,
it does discuss enough for most users'
day-to-day needs.
This includes
printing, appending, changing, deleting, moving and inserting entire lines of text;
reading and writing files;
context searching and line addressing;
the substitute command;
the global commands;
and the use of special characters for advanced editing.
.AE