几个read用法

BOoRFGOnZ

read -p "how old r u? " age
echo $age
read -p "some words? " -a words
echo ${words

}
read -p "Password: " -s passwd                                 
echo $passwd
read -t 5 auth
echo $auth
read -n 1 key
read -dq -p "input something end with q: " menu

BOoRFGOnZ

变量长度
echo $name | awk '{printf("%d",length($1))}'