🫂Adding a user to a group

1. With adduser we can add user to a group like this:

sudo adduser <user> <groupname>

We can include a user to a group. We must include out user in the groups sudo and user42 in my case:

sudo gemartin user42

sudo gemartin sudo

1. Once we are done with that we can check it using getent group <groupname> ; the groups sudo and user42 must be present with our user:

getent group sudo user42