Question

Modifying Users in Linux

Answer 1

Parameter                                                                    Details

username                                    The name of the user. Do not use capital letters, do not use dots, do not end it in dash, it must not include colons, no special characters. Cannot start with a number.

Setting your own password

passwd

Setting another user's password

Run the following as root:

passwd username

Adding a user

Run the following as root:

useradd username 

Removing a user

Run the following as root:

userdel username

 Removing a user and its home folder

Run the following as root:

userdel -r username 

Listing groups the current user is in 

groups

More detailed information about user and group numerical IDs can be found with the id command.

Listing groups a user is in

groups username

More detailed information about user and group numerical IDs can be found with id username.