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<h3 class="section">31.5 Readline vi Mode</h3>

<p>While the Readline library does not have a full set of <code>vi</code>
editing functions, it does contain enough to allow simple editing
of the line.  The Readline <code>vi</code> mode behaves as specified in
the <span class="sc">posix</span> 1003.2 standard.

   <p>In order to switch interactively between <code>emacs</code> and <code>vi</code>
editing modes, use the command <kbd>M-C-j</kbd> (bound to emacs-editing-mode
when in <code>vi</code> mode and to vi-editing-mode in <code>emacs</code> mode). 
The Readline default is <code>emacs</code> mode.

   <p>When you enter a line in <code>vi</code> mode, you are already placed in
`insertion' mode, as if you had typed an &lsquo;<samp><span class="samp">i</span></samp>&rsquo;.  Pressing &lt;ESC&gt;
switches you into `command' mode, where you can edit the text of the
line with the standard <code>vi</code> movement keys, move to previous
history lines with &lsquo;<samp><span class="samp">k</span></samp>&rsquo; and subsequent lines with &lsquo;<samp><span class="samp">j</span></samp>&rsquo;, and
so forth.

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