This chapter describes the basic features of the gnu
command line editing interface.
29.1. Introduction to Line Editing
The following paragraphs describe the notation used to represent
The text C-k is read as `Control-K' and describes the character
produced when the [k] key is pressed while the Control key
The text M-k is read as `Meta-K' and describes the character
produced when the Meta key (if you have one) is depressed, and the [k]
key is pressed.
The Meta key is labeled [ALT] on many keyboards.
On keyboards with two keys labeled [ALT] (usually to either side of
the space bar), the [ALT] on the left side is generally set to
work as a Meta key.
The [ALT] key on the right may also be configured to work as a
Meta key or may be configured as some other modifier, such as a
Compose key for typing accented characters.
If you do not have a Meta or [ALT] key, or another key working as
a Meta key, the identical keystroke can be generated by typing [ESC]
first, and then typing [k].
Either process is known as metafying the [k] key.
The text M-C-k is read as `Meta-Control-k' and describes the
character produced by metafying C-k.
In addition, several keys have their own names. Specifically,
[DEL], [ESC], [LFD], [SPC], [RET], and [TAB] all
stand for themselves when seen in this text, or in an init file
(refer to Section 29.3 Readline Init File).
If your keyboard lacks a [LFD] key, typing [C-j] will
produce the desired character.
The [RET] key may be labeled [Return] or [Enter] on