用shell脚本写的可以计算出自己来到这个世界的天数

#! /bin/bash
echo -n "please inout you birthday(YY-MM-DD HH:MM:SS):"
read string
tput reset
while true
    do
echo "    **************TIME GAME*********************"
echo "                NOW--NOW-- NOW"
echo "         Your birthday is $string"
echo "         NOW DATE：`date +%c`          "
#echo "     NOW TIME：`date +%D`          "
#seconds=`date -d "2013-01-01 00:00:00" +%s`
seconds=`date -d "$string" +%s`
secondo=`date +%s`
#echo $seconds   
#echo $secondo
new_seconds=$(($secondo - $seconds))
echo "        THE YEAR HAVE GOT:`date +%W`周,`date +%j`天 "
echo "        @NOW-->YOU HAVE SPEND:$new_seconds秒,$(($new_seconds/86400 + 1))天         "
echo "    ********************************************"
sleep 1
clear
done