mymenu

linux中shell编程,是操作系统的上机题,后台可以增加用户

while true
do
echo  -e "\n"
echo -e "\n ◆ the menu before login in ◆"
echo -e "\n ==============================="
echo "  0.exit 1. show user 2.show the time 3. add   4."
echo -e "\n"
echo -e " please choose(0-7):\c"
read z
case $z in
0)clear
exit;;
1)clear
echo "name pid logintime"
echo "===================================="
who
tty=`tty |cut -f3 -d"/"`
echo "\n"
echo "\n name: is $tty";;
2)clear
date '+ today: %Y Y %m M %d D，week %w '
echo -e "\n"
date '+ time:%T';;
3)clear
cd /root/Desktop/My
./c1;;
esac
done