#!/bin/bash
clear
while true; do
echo Listen to keys...
read -rsn1 input
if [ "$input" = "a" ]; then
a
elif [ "$input" = "f" ]; then
f
elif [ "$input" = "g" ]; then
g
elif [ "$input" = "s" ]; then
s
elif [ "$input" = "q" ]; then
exit 0
fi
done