ask user for confirmation

confirmation.bash

#!/bin/bash

while true; do
	read -p "$(printf "\tEditing…\t%s? [y/N]\n" )" yn;
	case $yn in
		[Yy]* )
			echo "action_si_valide"
			break;;
		'') ;&
		[Nn]*)
			echo "action_si_mauvaise_réponse"
			exit;;
		* )
			echo "autre_cas"
	esac;
done;

echo "vu_si_action_valide"