While the Readline library does not have a full set of vi
editing functions, it does contain enough to allow simple editing
of the line. The Readline vi
mode behaves as specified in
the POSIX 1003.2 standard.
In order to switch interactively between emacs
and vi
editing modes, use the command M-C-j (toggle-editing-mode).
The Readline default is emacs
mode.
When you enter a line in vi
mode, you are already placed in
`insertion' mode, as if you had typed an `i'. Pressing ESC
switches you into `command' mode, where you can edit the text of the
line with the standard vi
movement keys, move to previous
history lines with `k' and subsequent lines with `j', and
so forth.
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