SCP 使用

SCP 不输入密码
两台LINUX主机之间建立信任关系之后，可不输入密码即可相互传送文件。
例如：主机A与主机B
1、在A的当前用户(例如oracle)下，运行

#ssh-keygen -t rsa 

Generating public/private rsa key pair.
Enter file in which to save the key (/home/oracle/.ssh/id_rsa):#回车
Enter passphrase (empty for no passphrase):#回车
Enter same passphrase again:#回车
Your identification has been saved in /home/oracle/.ssh/id_rsa.
Your public key has been saved in /home/oracle/.ssh/id_rsa.pub.
The key fingerprint is:
07:0d:3c:cc:43:b7:c6:44:86:71:ff:03:a9:e1:43:d1 oracle@A.x.x.com

会在用户目录~/.ssh/产生两个文件，id_rsa与id_rsa.pub。

2、拷贝 id_rsa.pub到B的.ssh/authorized_keys,这样再次运行

scp oracle@B.x.x.com:/home/oracle/test.txt test.txt

，则不需要输入密码了！

引用

注意修改文件权限chmod +700 authorized_keys(保证只有登录用户有写的权限）
cat id_rsa.pub >> ~/.ssh/authorized_keys

引用

usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]
           [-l limit] [-o ssh_option] [-P port] [-S program]
           [[user@]host1:]file1 [...] [[user@]host2:]file2

SCP 复制文件夹

scp -r dir1 oracle@B.x.x.com:/home/oracle/dir1/

-r参数代表递归复制,把dir1下的文件都拷贝到/home/oracle/dir1下。