在SSH会话中找到客户端的IP地址 [英] Find the IP address of the client in an SSH session

问题描述

我有一个脚本，该脚本将由使用 SSH 登录到服务器的人运行a>.

I have a script that is to be run by a person that logs in to the server with SSH.

是否可以自动找出用户连接的IP地址?

Is there a way to find out automatically what IP address the user is connecting from?

我当然可以问用户(这是程序员的工具，所以没问题)，但是如果我发现的话，它会更酷.

Of course, I could ask the user (it is a tool for programmers, so no problem with that), but it would be cooler if I just found out.

推荐答案

检查是否存在一个名为:

Check if there is an environment variable called:

$SSH_CLIENT 

OR

$SSH_CONNECTION

(或任何其他环境变量)在用户登录时设置.然后使用用户登录脚本对其进行处理.

(or any other environment variables) which gets set when the user logs in. Then process it using the user login script.

提取IP:

$ echo $SSH_CLIENT | awk '{ print $1}'
1.2.3.4
$ echo $SSH_CONNECTION | awk '{print $1}'
1.2.3.4

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