What is the set -o vi command for?

agasamapetilon · #1 (**permalink**) 08-26-2008

I have heard the following command and seen people using it at shell but I don't know what it is for and when it is used. I will appreciate any comment regarding the use of this command.

Code:

set -o vi

vbe · #2 (**permalink**) 08-26-2008

its to tells ksh to set vi as editor, and so be used for your history or command completion or because you made a mistake in your 200 char command line and dont want to reype the lot let you type Esc then v and there you are with your line in vi...
Most important! learn vi!!!

buffoonix · #3 (**permalink**) 08-26-2008

It's not to set vi as your editor.
You would signal this to some programs by setting the environment variables

Code:

export EDITOR=vi VISUAL=vi

It rather tells your shell to behave as far as key mappings and shell history are concerned like the editor vi.
But why don't you simply consult your shell's manpage?
e.g. excerpt from my Bash manpage

Quote:

Originally Posted by man bash

vi Use a vi-style command line editing interface.

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