linux编程 谁比较会shell编程的啊？帮我写一下。

shell 太高深了

#!/bin/bash
export sum=0
export i=1
echo -n "Please input a number n:"
read n
while [ $n -le 0 ] || [ $n -ge 100 ]
do
    echo "number n must from 1 to 100"
    echo -n "Please input again: "
    read n
done
while [ $i -le $n ]
do
    if [ $(($i%5)) -ne 0 ];then
        sum=$(($sum + $i))
    fi
    i=$(($i + 1))
done
echo "The sum is: $sum"

#/bin/bash
i=1
s=0
while [ $i -ne 100 ]
do
if [ $[$i%5] -ne 0 ]
then
s=$[$s+$i]
fi
i=$[$i+1]
done
echo $s

#!/bin/bash
var3=0
for(( i=0; i<100; i++))
do
var2=$[$i / 5]
if [ $var2 -ne 0 ]
then
var3=$[$var3 + $var2]
fi
done
echo "100 以内不是5整数倍的数字和为: $var3"

2L亮了

+1