I’m pretty new to Linux and Antergos and while installing a program through sh, I just entered sudo bash program.sh when the error of the title ocurred for the first time.
Now I’m not able to run anything through sudo.
I found some fixes in the internet using:
chmod 4755 /usr/bin/sudo
in the recovery mode, but I’m not able to get to a recovery mode or to fix this problem.
I’d be very happy for an answer.