远程 ssh 命令问题答案

【问题标题】：remote ssh command issue远程 ssh 命令问题
【发布时间】：2016-12-16 21:52:44
【问题描述】：

团队，

我在远程机器上运行命令时遇到了一些困难。我无法理解为什么 ssh 试图认为我传递的命令是主机。

ssh -tt -i /root/.ssh/teamuser.pem teamuser@myserver 'cd ~/bin && ./ssh-out.sh'

|-----------------------------------------------------------------|
| This system is for the use of authorized users only.            |
| Individuals using this computer system without authority, or in |
| excess of their authority, are subject to having all of their   |
| activities on this system monitored and recorded by system      |
| personnel.                                                      |
|                                                                 |
| In the course of monitoring individuals improperly using this   |
| system, or in the course of system maintenance, the activities  |
| of authorized users may also be monitored.                      |
|                                                                 |
| Anyone using this system expressly consents to such monitoring  |
| and is advised that if such monitoring reveals possible         |
| evidence of criminal activity, system personnel may provide the |
| evidence of such monitoring to law enforcement officials.       |
|-----------------------------------------------------------------|

ssh: Could not resolve hostname cd: No address associated with hostname
Connection to myserver closed.

如果我不传递命令，它绝对可以正常工作。它只是让我登录。有什么想法吗？

【问题讨论】：

标签： ssh remotecommand

【解决方案1】：

Man ssh 说：

如果指定了命令，则在远程主机上执行，而不是一个登录外壳。

问题是cd 是内置的 bash（在您的终端中运行 type cd）。因此，ssh 尝试将 cd 作为 shell 运行，但在 PATH 中找不到。

你应该像这样调用 ssh：

 ssh user@host  -t 'bash -l -c "cd ~/bin && ./ssh-out.sh"'

【讨论】：