1.利用for循环打印**
示例代码:
#!/bin/bash
for (( i=0;i<3;i++ ))
do
for(( j=0;j<5;j++ )) #每行打印5个*,打印三行
do
echo -n "* "
done
echo ""
done
2.利用for循环计算1到100的和:
示例代码1:
#!/bin/bash
sum=0
for i in {1..100}
do
let sum=sum+$i
done
echo $sum
示例代码2:
#!/bin/bash
sum=0
for i in `seq 1 100`
do
let sum=sum+$i
done
echo $sum
示例代码3:求1到100之间所有奇数之和
#!/bin/bash
sum=0
for i in `seq 1 2 100`
do
let sum=sum+$i
done
echo $sum