#!/bin/bash
#scriptname:locktty
#writed by :Marksinoberg
#description : just for protecting our message when we leave away. And we can set the password every time.

reset;clear #清除屏幕
info="Please input the password you will use later!"
cowsay $info
read mypassword
echo "Screen will locked in 7 seconds!"
sleep 7
clear
#!/bin/bash
#scriptname:locktty
#writed by :javalee
#script start...
reset;clear #清除屏幕
info="Please input the password you will use later!"
cowsay $info
read mypassword
echo "Screen will locked in 7 seconds!"
sleep 7
clear
#加上这个倒记时的小东东,;)

trapper () { #建立个函数
trap ' ' 2 3 20 #忽略CTRL+C CTRL+\ CTRL+Z信号
}
while : #进入死循环
do
trapper #调用函数
printf "\n\n\n\n\n\n\n\n\t\t\tPlease enter unlock code:" | cowsay
stty -echo  #屏蔽输入的字符
read input
case $input in
$mypassword)
printf "\t\t Hello $USER,Today is $(date +%T)\n"
stty echo  
break ;;  #输入正确,挑出循环回到命令行
*)echo "Do not check my files,please! See as follows:"
sleep 3
clear
continue ;;  #否则,继续循环
esac
done