(octave.info)Command Line Editing

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2.4 Command Line Editing
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Octave uses the GNU Readline library to provide an extensive set of
command-line editing and history features.  Only the most common
features are described in this manual.  In addition, all of the editing
functions can be bound to different key strokes at the user’s
discretion.  This manual assumes no changes from the default Emacs
bindings.  See the GNU Readline Library manual for more information on
customizing Readline and for a complete feature list.

   To insert printing characters (letters, digits, symbols, etc.),
simply type the character.  Octave will insert the character at the
cursor and advance the cursor forward.

   Many of the command-line editing functions operate using control
characters.  For example, the character ‘Control-a’ moves the cursor to
the beginning of the line.  To type ‘C-a’, hold down <CTRL> and then
press <a>.  In the following sections, control characters such as
‘Control-a’ are written as ‘C-a’.

   Another set of command-line editing functions use Meta characters.
To type ‘M-u’, hold down the <META> key and press <u>.  Depending on the
keyboard, the <META> key may be labeled <ALT> or even <WINDOWS>.  If
your terminal does not have a <META> key, you can still type Meta
characters using two-character sequences starting with ‘ESC’.  Thus, to
enter ‘M-u’, you would type <ESC> <u>.  The ‘ESC’ character sequences
are also allowed on terminals with real Meta keys.  In the following
sections, Meta characters such as ‘Meta-u’ are written as ‘M-u’.

Cursor Motion

Killing and Yanking

Commands for Text

Commands for Completion

Commands for History

Customizing readline

Customizing the Prompt

Diary and Echo Commands