I would like to get a script to respond to arrow key presses to scroll up and down a menu.
The platform is CDLinux which uses a prehistoric version of bash, version 1.14.7.
I would like to do something like "read -sn 1 keyin" but the "read" command is so primative that it only has the -r switch available so it is not possible, as far as I can see, to read single keystrokes, only whole lines.
Is there any way to detect arrow keys in this backwater of a bash shell?