2018-01-11日

题：根据给出的数列写脚本 

10 31 53 77 105 141

请根据以上数列续写后面10个。

#!/bin/bash

Sum=10

echo -n $Sum

for i in {1..10}

do

    Sum=$[Sum+20+2**$[i-1]]

echo -n "  " $Sum

done

echo ""

2018-01-12日

题：列出菜单，选功能

#!/bin/bash

while true

do

clear

echo "-----------Cmd Meau----------"

echo "1:date 2:ls"

echo "3:who 4:pwd"

echo "5:quit"

read -p "please input " Num

case $Num in

  1)

date;;

  2)

ls ;;

  3)

who;;

  4)

pwd;;

  5)

break;;

esac

sleep 5

done