As a linux user, we know the difference between a user having root privileges and users without. This is an important thing to understand. Sudo for the win. 

![[Pasted image 20230809185553.png]]

There are 3 kinds of users on linux. 
1. Super user
2. System user
3. Normal user

---

### Adding Users 

Adding a user: 

```
useradd usernamehere
```

Additional `useradd` flags:

```
#creates a home directory for the user 'joe'
useradd joe -m

#creates a default shell for the user 
useradd joe -m -s

#using the bash as default shell for user
useradd joe -m -s /bin/bash/ 

#adds user to the default user group 
useradd joe -g users 

#adds comments to the user 
useradd joe -c "this dude sucks"
```


Putting it all together, making a user profile for Joe. 
```
sudo useradd joe -m -s /bin/bash -g users -c "this dude sucks"
```

Many more flags are available but go to `man` for additional info. 


Setting a password for Joe. 
```
sudo passwd joe
```


### Removing Users 

Removing a user: 
```
userdel joe 
```


### Misc User stuff 

View all users: 
```
cat /etc/passwd
```