#!/bin/bash
week=`date +%u`
if [ $week=1 ]
  then echo "今天是星期一"
elif [ $week=2 ]
  then echo "今天是星期二"
elif [ $week=3 ]
  then echo "今天是星期三"
elif [ $week=4 ]
  then echo "今天是星期四"
elif [ $week=5 ]
  then echo "今天星期五"
elif [ $week=6 ]
  then echo "今天是星期六"
else echo "今天是星期日"
fi