Add user to a group (sudores)
Enabled wheel group in sudores
sh
## Allows people in group wheel to run all commands
%wheel ALL=(ALL) ALL
Add pippo to group wheel
sh
# usermod -a -G wheel pippo
Add user passwordless
sh
pippo ALL=(ALL) NOPASSWD: ALL
...and NO TTY
sh
pippo ALL=(ALL) NOPASSWD: ALL
Defaults:pippo !requiretty