Hot key in Korn shell?

mburke · #1 (**permalink**) 09-19-06, 15:39

I want to be able to use the arrow keys (up and down) to cycle through the commands I have already executed. Is this possile? I can do it on a DOS prompt.

pdreyer · #2 (**permalink**) 09-20-06, 02:53

I prefer
set -o vi
this allow me to use vi to edit the commands I type
just hit escape and use normal vi commands to edit the line
and
<esc-k><k><k><k> to scroll back thru previous 3 commands
<esc-j><j><j> to scroll forward 2 commands

But to answer your question

Code:

#!/bin/ksh
# file: enable-arrows
# source in current environment with
# command:
#       . enable-arrows
#

set -o emacs

# Note: these are the actual control
# characters. In vi, type ctrl-v
# then ctrl-P (if u want a ctrl-p)
alias _A=^P
alias _B=^N
alias _D=^B
alias _C=^F

alias __A=^P
alias __B=^N
alias __D=^B
alias __C=^F

mburke · #3 (**permalink**) 09-20-06, 10:31

Ok, I copied the script and executed it. But I am not sure how to use it (I don't use Unix often)

Tyveleyn · #4 (**permalink**) 09-20-06, 16:23

Writing the lines in your .profile, or importing the script into the .profile with the line:

Code:

. path/enable-arrows

makes the functionality always available...

BTW. Your requested behaviour is standard for the bash-shell in many (if not all) Linux distributions. I don't miss anything I had in ksh, so if it's available on your system...

mburke · #5 (**permalink**) 09-21-06, 10:26

It's a development account, so I cannot touch the .profile. I just don't know which keys are used for navigation once I execute the script.

Tyveleyn · #6 (**permalink**) 09-21-06, 17:38

Quote:

I just don't know which keys are used for navigation once I execute the script.

what do you mean by that? If the script doesn't make the cursor keys function like you wanted then probably you didn't enter the control characters the right way. Do it as pdreyer described:

Quote:

In vi, first type ctrl-v, then ctrl-P (if u want a ^P)

Be sure the script is executable and make it's code effective in your current shell with

Code: