For a lot of things, it should be enough to add an existing user to the root group. You would use a command like this:
- usermod -a -G root myusername
("root" being the group in this case and "myusername" being the user name)
Of course, you'll have to do this as root.
A further possibility would be to use
sudo, which will allow users to run commands as root like this:
In some distributions
sudo is installed by default, in others you'll have to install it yourself. If you need further instructions on that, please tell us your distribution.
Greetings,
Nepomuk
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