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翻译完成3 Ways to Extract and Copy Files from ISO Image in Linux
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##Translating by rusking
3 Ways to Extract and Copy Files from ISO Image in Linux
============================================================
Let’s say you have a large ISO file on your Linux server and you wanted to access, extract or copy one single file from it. How do you do it? Well in Linux there are couple ways do it.
For example, you can use standard mount command to mount an ISO image in read-only mode using the loop device and then copy the files to another directory.
### Mount or Extract ISO File in Linux
To do so, you must have an ISO file (I used ubuntu-16.10-server-amd64.iso ISO image) and mount point directory to mount or extract ISO files.
First create an mount point directory, where you will going to mount the image as shown:
```
$ sudo mkdir /mnt/iso
```
Once directory has been created, you can easily mount ubuntu-16.10-server-amd64.iso file and verify its content by running following command.
```
$ sudo mount -o loop ubuntu-16.10-server-amd64.iso /mnt/iso
$ ls /mnt/iso/
```
[
![Mount ISO File in Linux](http://www.tecmint.com/wp-content/uploads/2016/10/Mount-ISO-File-in-Linux.png)
][1]
Mount ISO File in Linux
Now you can go inside the mounted directory (/mnt/iso) and access the files or copy the files to `/tmp`directory using [cp command][2].
```
$ cd /mnt/iso
$ sudo cp md5sum.txt /tmp/
$ sudo cp -r ubuntu /tmp/
```
[
![Copy Files From ISO File in Linux](http://www.tecmint.com/wp-content/uploads/2016/10/Copy-Files-From-ISO-File-in-Linux.png)
][3]
Copy Files From ISO File in Linux
Note: The `-r` option used to copy directories recursively, if you want you can also [monitor progress of copy command][4].
### Extract ISO Content Using 7zip Command
If you don’t want to mount ISO file, you can simply install 7zip, is an open source archive program used to pack or unpack different number of formats including TAR, XZ, GZIP, ZIP, BZIP2, etc..
```
$ sudo apt-get install p7zip-full p7zip-rar [On Debian/Ubuntu systems]
$ sudo yum install p7zip p7zip-plugins [On CentOS/RHEL systems]
```
Once 7zip program has been installed, you can use 7z command to extract ISO file contents.
```
$ 7z x ubuntu-16.10-server-amd64.iso
```
[
![7zip - Extract ISO File Content in Linux](http://www.tecmint.com/wp-content/uploads/2016/10/Extract-ISO-Content-in-Linux.png)
][5]
7zip – Extract ISO File Content in Linux
Note: As compared to Linux mount command, 7zip seems much faster and smart enough to pack or unpack any archive formats.
### Extract ISO Content Using isoinfo Command
The isoinfo command is used for directory listings of iso9660 images, but you can also use this program to extract files.
As I said isoinfo program perform directory listing, so first list the content of ISO file.
```
$ isoinfo -i ubuntu-16.10-server-amd64.iso -l
```
[
![List ISO Content in Linux](http://www.tecmint.com/wp-content/uploads/2016/10/List-ISO-Content-in-Linux.png)
][6]
List ISO Content in Linux
Now you can extract a single file from an ISO image like so:
```
$ isoinfo -i ubuntu-16.10-server-amd64.iso -x MD5SUM.TXT > MD5SUM.TXT
```
Note: The redirection is needed as `-x` option extracts to stdout.
[
![Extract Single File from ISO in Linux](http://www.tecmint.com/wp-content/uploads/2016/10/Extract-Single-File-from-ISO-in-Linux.png)
][7]
Extract Single File from ISO in Linux
Well, there are many ways to do, if you know any useful command or program to extract or copy files from ISO file do share us via comment section.
--------------------------------------------------------------------------------
via: http://www.tecmint.com/extract-files-from-iso-files-linux
作者：[Ravi Saive][a]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]:http://www.tecmint.com/author/admin/
[1]:http://www.tecmint.com/wp-content/uploads/2016/10/Mount-ISO-File-in-Linux.png
[2]:http://www.tecmint.com/advanced-copy-command-shows-progress-bar-while-copying-files/
[3]:http://www.tecmint.com/wp-content/uploads/2016/10/Copy-Files-From-ISO-File-in-Linux.png
[4]:http://www.tecmint.com/monitor-copy-backup-tar-progress-in-linux-using-pv-command/
[5]:http://www.tecmint.com/wp-content/uploads/2016/10/Extract-ISO-Content-in-Linux.png
[6]:http://www.tecmint.com/wp-content/uploads/2016/10/List-ISO-Content-in-Linux.png
[7]:http://www.tecmint.com/wp-content/uploads/2016/10/Extract-Single-File-from-ISO-in-Linux.png

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在Linux系统下提取和复制ISO镜像文件的3种方法
============================================================
假设你的Linux服务器上有一个超大的ISO镜像文件，你想要打开它，然后提取或者复制其中的一个文件。你会怎么做呢？
其实在Linux系统里，有很多方法来实现这个要求。
比如说，你可以使用传统的mount命令以只读方式把ISO镜像文件加载为loop设备，然后再把文件复制到另一个目录。
### 在Linux系统下提取ISO镜像文件
为了完成该测试，你得有一个ISO镜像文件（我使用ubuntu-16.10-server-amd64.iso系统镜像文件）以及用于挂载和提取ISO镜像文件的目录。
首先，使用如下命令创建一个挂载目录来挂载ISO镜像文件：
```
$ sudo mkdir /mnt/iso
```
目录创建完成后，你就可以运行如下命令很容易地挂载ubuntu-16.10-server-amd64.iso系统镜像文件并查看其中的内容。
```
$ sudo mount -o loop ubuntu-16.10-server-amd64.iso /mnt/iso
$ ls /mnt/iso/
```
[
![Mount ISO File in Linux](http://www.tecmint.com/wp-content/uploads/2016/10/Mount-ISO-File-in-Linux.png)
][1]
在Linux系统里技巧ISO镜像
Now you can go inside the mounted directory (/mnt/iso) and access the files or copy the files to `/tmp`directory using [cp command][2].
现在你就可以进入到挂载目录/mnt/iso里，查看文件或者使用cp命令把文件复制到/tmp目录了。
```
$ cd /mnt/iso
$ sudo cp md5sum.txt /tmp/
$ sudo cp -r ubuntu /tmp/
```
[
![Copy Files From ISO File in Linux](http://www.tecmint.com/wp-content/uploads/2016/10/Copy-Files-From-ISO-File-in-Linux.png)
][3]
在Linux系统中复制ISO镜像里的文件
注意：-r选项用于递归复制目录里的内容。如有必要，你也可以监控复制命令的完成进度。
### 使用7zip命令提取ISO镜像里的内容
如果不想挂载ISO镜像，你可以简单地安装一个7zip工具，这是一个免费而且开源的解压缩软件，用于压缩或解压不同类型格式的文件，包括TAR,XZ,GZIP,ZIP,BZIP2等等。
```
$ sudo apt-get install p7zip-full p7zip-rar [On Debian/Ubuntu systems]
$ sudo yum install p7zip p7zip-plugins [On CentOS/RHEL systems]
```
7zip软件安装完成后，你就可以使用7z命令提取ISO镜像文件里的内容了。
```
$ 7z x ubuntu-16.10-server-amd64.iso
```
[
![7zip - Extract ISO File Content in Linux](http://www.tecmint.com/wp-content/uploads/2016/10/Extract-ISO-Content-in-Linux.png)
][5]
使用7zip工具在Linux系统下提取ISO镜像里的文件
注意：跟Linux的mount命令相比起来，7zip在压缩和解压缩任何格式的文件时速度更快，更智能。
### 使用isoinfo命令来提取ISO镜像文件内容
虽然isoinfo命令是用来以目录的形式列出iso9660镜像文件的内容，但是你也可以使用程序来提取文件。
我说过，isoinfo程序会显示目录列表，因此先列出ISO镜像文件的内容。
```
$ isoinfo -i ubuntu-16.10-server-amd64.iso -l
```
[
![List ISO Content in Linux](http://www.tecmint.com/wp-content/uploads/2016/10/List-ISO-Content-in-Linux.png)
][6]
Linux里列出ISO文件的内容
现在你可以按如下的方式从ISO镜像文件中提取单文件：
```
$ isoinfo -i ubuntu-16.10-server-amd64.iso -x MD5SUM.TXT > MD5SUM.TXT
```
注意：必须使用重定向参数 -x 来提取指定文件
[
![Extract Single File from ISO in Linux](http://www.tecmint.com/wp-content/uploads/2016/10/Extract-Single-File-from-ISO-in-Linux.png)
][7]
从ISO镜像文件中提取单文件
就到这里吧，其实还有很多种方法来实现这个要求，如果你还知道其它有用的命令或工具来提取复制出ISO镜像文件中的文件，请在下面的评论中跟大家分享下。
--------------------------------------------------------------------------------
via: http://www.tecmint.com/extract-files-from-iso-files-linux
作者：[Ravi Saive][a]
译者：[rusking](https://github.com/rusking)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出