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|
#! /bin/bash
# Usage: yesno prompt...
default=
if [ "$1" = "-y" ]
then default='y'; shift
elif [[ "$1" = "-n" ]]; then
default='n'; shift
fi
if [ $# -eq 0 ]
then prompt="yes or no: "
else prompt="$*"
fi
while true
do
read -p "$prompt" || exit 1
if [ -z "$REPLY" -a ! -z "$default" ]
then REPLY=$default
fi
case "$REPLY" in
y*|Y*) exit 0;;
n*|n*) exit 1;;
*) echo "Answer yes or no please";;
esac
done
|
