[root@aixtest]/root # echo $SHELL
ksh93
 
[root@aixtest]/root # grep EDITOR .profile
.profile:export EDITOR=vi

Here is exmaple of shorcuts using in shell when EDITOR is vi (or: set -o vi)

    [ESC]+j : go to next command

    [ESC]+k : go to previous command

    [ESC]+l : go to the next character on the right

    [ESC]+h : go to the next character on the left

    [ESC]+/ : search a word through the command line history, hit « n » to continue the search, or « enter » to edit the line you wish to use

    [ESC]+w : go to the first letter of the next word

    [ESC]+e : go to the last letter of the current word

    [ESC]+cw : change the rest of the word, starting from the current position
    
    [ESC]+dw : delete the rest of the word

    [ESC]+0 : go to the first character of the line

    [ESC]+$ : go to the last character of the line