Find the IP address of the client in an SSH session

Question

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

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

Answer 1

I'm getting the following output from who -m --ips on Debian 10:

root pts/0 Dec 4 06:45 123.123.123.123

Looks like a new column was added, so {print $5} or "take 5th column" attempts don't work anymore.

Try this:

who -m --ips | egrep -o '([0-9]{1,3}\.){3}[0-9]{1,3}'

Source:

• @Yvan's comment on @AlexP's answer
• @Sankalp's answer