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GNU Octave

2.4 Command Line Editing

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. Please see The GNU Readline Library manual for more information.

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. On some terminals, you type M-u by holding down META and pressing u. If your terminal does not have a META key, you can still type Meta charcters using two-character sequences starting with ESC. Thus, to enter M-u, you could type ESCu. 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.

2.4.1 Cursor Motion
2.4.2 Killing and Yanking
2.4.3 Commands For Changing Text
2.4.4 Letting Readline Type For You
2.4.5 Commands For Manipulating The History
2.4.6 Customizing the Prompt
2.4.7 Diary and Echo Commands