shell各类脚本

标签：shell各类脚本

#批量修改当前目录下的文件扩展名，将.doc改为.txt

1.          [root@svr5 rendir]# vim ../renfilex.sh

2.            #!/bin/bash

3.            for FILE in "$1"

4.            do

5.            mv $FILE ${FILE%$1}"$2"

6.            done

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

编写sumx.sh脚本，从键盘读入一个正整数x，求从1到x的和

1.            [root@svr5 ~]# vim sumx.sh

2.            #!/bin/bash

3.            read -p "请输入一个正整数：" x

4.            x=${x:-1}

5.            i=1; SUM=0

6.            while [ $i -le $x ]

7.            do

8.            let SUM+=i

9.            let i++

10.        done

11.        echo "从1到$x的总和是：$SUM"

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

99乘法表

1 #!/bin/bash
  2 for((i=1;i<=9;i++))
  3 do
  4  for ((j=1;j<=9;j++))
  5   do
  6   echo -ne   "$i*$j=$((i*j))\t"
  7 done
  8 echo
  9 done

shell各类脚本

标签：shell各类脚本

原文地址：http://liangzai818.blog.51cto.com/10003446/1763491