How to create su user on Linux

First add the user, run:
```
sudo adduser <UserNameHere>
```
Add the user to sudo group by typing the command in terminal for Ubuntu version 12.04 and above:
```
sudo adduser <UserNameHere> sudo
```
In an older version of Ubuntu (version 12.04 and older), run:
```
sudo adduser <UserNameHere> admin
```
Verify it:
```
id <UserNameHere>
```

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