How is it that I've been writing shell scripts for over 15 years now to automate processes, and I've only just discovered $SUDO_USER today? I feel like that's a MASSIVE oversight.

@twann @mike can either of you provide a link, or personal clarification what that is and how to use it?

@RyuKurisu @twann @mike
Create a script like this,

#!/bin/bash
[ $SUDO_USER ] && user=$SUDO_USER || user=`whoami`
echo -en "$user"

Then run it as a normal user and then with sudo and see what happens ;)

Explanation,
sudo.ws/man/sudo.man.html#SUDO

Follow

@hakerdefo @RyuKurisu @twann @mike Just to golf things a little,

#!/bin/sh
echo ${SUDO_USER:-$USER} running as $USER

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