Can I find which user used sudo to run my script?

Question

I have googling around for long time but couldn't actually find a reliable way.

This is what I want:

Use Bash script, check if user is actually root root, not the user with sudo command.

I have tried many ways , like id -u, $EUID, whoami, etc., but all of them return same value when run as root and using sudo.

Does this answer your question? [How do you find the original user through multiple sudo and su commands?](https://stackoverflow.com/questions/4598001/how-do-you-find-the-original-user-through-multiple-sudo-and-su-commands) — Joe, Jan 13 '20 at 11:20
What is the difference between "being `root`" and running a command *as* `root`? — grooveplex, Jan 13 '20 at 13:18

score 0 · Accepted Answer · answered Jan 13 '20 at 12:15

0

You could check if there are some environment variables set by sudo:

set | grep SUDO

Output:

SUDO_COMMAND=/bin/bash
SUDO_GID=1000
SUDO_UID=1000
SUDO_USER=user1

answered Jan 13 '20 at 12:15

UtLox

1 Answers1