yes_or_no() {
echo "Is your name $*" while true do
echo -n "Enter yes or no: "
read x case "$x" in
y | yes ) return 0;;
n | no ) return 1;;
* ) echo "Answer yes or no" esac done
}
echo "Original parameters are $* "
if yes_or_no "$1" #"$1" 为传入到 yes_or_no 函数中的参数 then
echo "Hi $1, nice name" else
echo "Never mind" fi
exit 0