linux温故--1-daily_routine

#/bin/bash


cal

date -u

echo "Hello,welcome ${LOGNAME}！A full day has begun!"


read -p "input your pass word!" pwd

if test $pwd == "123"
then
        echo "Your login sucessfully!"
        for file in /tmp/*
        do
                echo $file
        done
else
        echo "Deny logon"
fi

 cal 打印日历

 date -u 显示或设置全球时间(格林威治时间)

${LOGNAME}当前登录用户