1.29 ssh/scp

1.29.1 ssh

大多数人以前没有接触过Linux系统，都是从Windows系统过来的，Windows下的一些实用功能例如共享文件，这样的功能在Linux系统也是可以实现的，而且更便捷。
先在要登陆的机器上安装ssh-server服务：

$ sudo apt-get install openssh-server

查看该机器的IP：

$ ifconfig

假设我们查询到这台机器的IP为192.168.0.247，并且知道这台机器的用户名和密码，在自己的机器上进行如下操作：

$ ssh xwp@192.168.0.247
The authenticity of host '192.168.0.247
(192.168.0.247)' can't be established. 

RSA key fingerprint is 6a:0d:44:dc:41:5e:8b:f7:a2:9f:9c:2d:47:92:4b:c8.
Are you sure you want to continue connecting (yes/no)?yes
xwp@192.168.0.247's password:
xwp@xwp-desktop:~$

这样我们就用自己的机器连接上了另一台机器，我们可以用命令行对这台机器进行操作。

1.29.2 scp

下面我们介绍如何复制另一台机器上的文件，比如我们要复制192.168.0.247:/home/xwp/mind 目录到本地，如下操作：

$ scp -r xwp@192.168.0.247:/home/xwp/mind ./

The authenticity of host '192.168.0.247 (192.168.0.247)' can't be
established.

RSA key fingerprint is 6a:0d:44:dc:41:5e:8b:f7:a2:9f:9c:2d:47:92:4b:c8.

Are you sure you want to continue connecting (yes/no)? yes 

Failed to add the host to the list of known hosts 

(/home/ymqqqqdx/.ssh/known\_hosts).

xwp@192.168.0.247's password: 

linux.mm        100% 2070     2.0KB/s   00:00     

gfh.mm                                        100% 1792     1.8KB/s   00:00 

$ ls
 . .. mind

下面介绍一个如何将本地的文件复制到远端，这个一定要掌握，因为在以后的学习中，提交代码采用这种方式。例如：本地的目录为yourname，要提交这个目录，教师机的IP地址为192.168.0.247，代码提交到教师机的/home/xwp/code/下：

$ scp -r yourname xwp@192.168.0.247:/home/xwp/code/
 
the authenticity of host '192.168.0.247 (192.168.0.247)' can't be established.  

RSA key fingerprint is 6a:0d:44:dc:41:5e:8b:f7:a2:9f:9c:2d:47:92:4b:c8. 

Are you sure you want to continue connecting (yes/no)? yes 

Failed to add the host to the list of known hosts 

(/home/ymqqqqdx/.ssh/knownhosts).

xwp@192.168.0.247's password:  

main.c 100%   34KB  33.9KB/s   00:00    

add.c  100% 2417     2.4KB/s   00:00