shell for

認識for循環結構

用法1、順序輸出1-10

[root@localhost test]# cat 6.sh

#!/bin/bash

for i in `seq 1 10`

do

echo $i

done

用法2、計算1-10的和

[root@localhost test]# cat 6.sh

#!/bin/bash

sum=0

for i in `seq 1 10`

do

sum=$[$sum+$i]

done

echo $sum