The following paragraphs describe the notation used to represent keystrokes.
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
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.
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
first, and then typing
Either process is known as metafying the
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,
stand for themselves when seen in this text, or in an init file
(see Readline Init File).
If your keyboard lacks a
LFD key, typing
produce the desired character.
RET key may be labeled