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ssh-copy-id
===
把本地的ssh公钥文件安装到远程主机对应的账户下
## 说明
**ssh-copy-id命令** 可以把本地主机的公钥复制到远程主机的authorized_keys文件上ssh-copy-id命令也会给远程主机的用户主目录home和`~/.ssh`, 和`~/.ssh/authorized_keys`设置合适的权限。
### 语法
```
ssh-copy-id [-i [identity_file]] [user@]machine
```
```
-i指定公钥文件
```
### 实例
1、把本地的ssh公钥文件安装到远程主机对应的账户下
```
ssh-copy-id user@server
ssh-copy-id -i ~/.ssh/id_rsa.pub user@server
```