The s6-poweroff is for root user, and I have users who wish to poweroff, and I don't want to give them sudo rights to power off the computer. That is why I am searching for simple solution.
Create a "poweroff" group. Add all the users you want to that group. chown root:poweroff /bin/s6-poweroff chmod 4750 /bin/s6-poweroff Now, all users in the group "poweroff" have the right to call s6-poweroff. They don't have any other privileges. -- Laurent