<p>Specifically, what commands do I run from the terminal?</p>

Without a home directory
```
```
sudo useradd myuser
```
```
With home directory
```
```
sudo useradd -m myuser
```
```
Then set the password
```
```
sudo passwd myuser
```
```
Then set the shell
```
```
sudo usermod -s /bin/bash myuser
```
```