批量创建文件和修改文件

Posted 2020-08-20 努力哥-运维自动化

1、使用for循环在/oldboy目录下创建安10个文件，名称依次为：
oldboy-1
oldboy-2
..................
oldboy-10

 

脚本如下：

1 [[email protected] tmp]# cat oldboy.sh
2 #!/bin/sh
3 mkdir -p /tmp/oldboy && cd /tmp/oldboy
4 for n in {1..10}
5 do
6     touch oldboy-$n
7 done

执行结果：

 1 [[email protected] tmp]# sh oldboy.sh
 2 [[email protected] tmp]# cd oldboy
 3 [[email protected] oldboy]# ll
 4 total 40
 5 -rw-r--r-- 1 root root 0 Nov 25 04:18 oldboy-1
 6 -rw-r--r-- 1 root root 0 Nov 25 04:18 oldboy-2
 7 -rw-r--r-- 1 root root 0 Nov 25 04:18 oldboy-3
 8 -rw-r--r-- 1 root root 0 Nov 25 04:18 oldboy-4
 9 -rw-r--r-- 1 root root 0 Nov 25 04:18 oldboy-5
10 -rw-r--r-- 1 root root 0 Nov 25 04:18 oldboy-6
11 -rw-r--r-- 1 root root 0 Nov 25 04:18 oldboy-7
12 -rw-r--r-- 1 root root 0 Nov 25 04:18 oldboy-8
13 -rw-r--r-- 1 root root 0 Nov 25 04:18 oldboy-9
14 -rw-r--r-- 1 root root 0 Nov 25 04:18 oldboy-10

 

2、将以上文件名中的oldboy全部改成linux

[[email protected] tmp]# cd oldboy
[[email protected] oldboy]# ls
oldboy-1 oldboy-10 oldboy-2 oldboy-3 oldboy-4 oldboy-5 oldboy-6 oldboy-7 oldboy-8 oldboy-9

 

脚本如下：

法一：

1 [[email protected] tmp]# cat modi.sh
2 #!/bin/sh
3 cd /tmp/oldboy
4 for n in {1..10}
5  do
6   mv linux-$n oldboy-$n
7 done

执行结果：

 1 [[email protected] tmp]# sh modi.sh
 2 [[email protected] tmp]# cd oldboy
 3 [[email protected] oldboy]# ll
 4 total 48
 5 -rw-r--r-- 1 root root 60 Nov 25 04:34 modi02.sh
 6 -rw-r--r-- 1 root root  0 Nov 25 04:18 oldboy-1
 7 -rw-r--r-- 1 root root  0 Nov 25 04:18 oldboy-10
 8 -rw-r--r-- 1 root root  0 Nov 25 04:18 oldboy-2
 9 -rw-r--r-- 1 root root  0 Nov 25 04:18 oldboy-3
10 -rw-r--r-- 1 root root  0 Nov 25 04:18 oldboy-4
11 -rw-r--r-- 1 root root  0 Nov 25 04:18 oldboy-5
12 -rw-r--r-- 1 root root  0 Nov 25 04:18 oldboy-6
13 -rw-r--r-- 1 root root  0 Nov 25 04:18 oldboy-7
14 -rw-r--r-- 1 root root  0 Nov 25 04:18 oldboy-8
15 -rw-r--r-- 1 root root  0 Nov 25 04:18 oldboy-9

法二：

1 [[email protected] tmp]# cat modi-oldboy.sh
2 #!/bin/sh
3 cd /tmp/oldboy
4 for f in `ls oldboy*`
5 do
6    mv $f  linux-`echo $f|cut -d"-" -f2`
7 done

执行结果：

1 [[email protected] tmp]# sh  modi-oldboy.sh
2 [[email protected] tmp]# cd oldboy/
3 [[email protected] oldboy]# ls
4 linux-1  linux-10  linux-2  linux-3  linux-4  linux-5  linux-6  linux-7  linux-8  linux-9  modi02.sh