Linux中接收键盘输入

read 选项 变量名
　　-p    "提示信息"
　　-t     指定等待时间，不指定则一直等待
　　-n    指定接收的字符数，不指定则不限制
　　-s    隐藏输入的数据，适用于机密信息的输入

[[email protected] sh]# vi param_test3.sh
[[email protected] sh]# cat param_test3.sh
#!/bin/bash

# 提示用户输入并等待30秒，并将输入结果存入name变量中
read -t 30 -p "Please input you name: " name
echo -e "\n"
echo "Name is $name"

# 加上 -s 以后 输入age的时候将隐藏起来
read -s -t 30 -p "Please input you age: " age
echo -e "\n"
echo "Age is $age"

# -n 1 代表只接收一个字符
read -n 1 -t 30 -p "Please input gender M/F :" gender
echo -e "\n"
echo "Genger is $gender"

[[email protected] sh]# sh param_test3.sh
Please input you name: xiaol
Name is xiaol
Please input you age:
Age is 12
Please input gender M/F :M
Genger is M
[[email protected] sh]#