Random Linux+ Question #58

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You type the following to create a user named "testuser":

Code:

useradd testuser

When you used the command, you automatically created certain files for this user. Of the options below, choose two. Answer later.

1. /home/testuser
2. /etc/passwd
3. /etc/password
4. /etc/shadow
5. /etc/group
6. /etc/groups
7. /bin/bash

 

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Should be 1 & 2

 

Hmmmm.... I must be missing something. When useradd is run on my system the -D switch must be added for useradd to create the default home directory and add the user to the default system files. Without the switch no /home directory is added and the user is not added to any group, nor are /etc/passwd or /etc/group edited. The user exists, but all files and passwords must be modified manually. Read man useradd to verify this.

The command adduser will, with no switches, add the user, create the /home directory, ask for the password, full user name, other miscellaneous user data, copy the files from /etc/skel, and edit /etc/passwd, /etc/shadow, and /etc/group.

I think you were thinking of the wrong command, trip.

 

I'll answer this one early. Correct answer should be 2 and 4. I just tested it again on my trusty Debian box. When you use the command "useradd username" without switches, entries for that user are automatically created in /etc/passwd and /etc/shadow. yes I know...the user has no password and they have no home directory, but the entries exist in those two files. When I use the "userdel username" command, the entries are automatically deleted. You do have to add additional information to create the home directory, password and so forth.

 

OK. What confused me then was the way you worded the question. The question read "you automatically created certain files". Those files aren't created by useradd, they're existing system configuration files that are edited by useradd.

 

My bad, Freddy. Writing these questions isn't as easy as it looks. I'm learning a lot from you, my friend.

 

No biggy. How well I know how hard it is to write a good question. I wrote questions for MCSE World for a while, a very little while, and even that little bit of experience that taught me just how hard writing good questions is.

 

Tested it on one of my CentOS 4.1 boxes and without any switches it creates the user folder in /home/.

Must be different on some distro's

 

What does adduser do on your CentOS box?