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I cross posted this question to AskUbuntu because my problem seems most acute on Debian/Ubuntu, but it was suggested that I ask here. Whatever method is suggested for solving this problem should work on most distros (e.g., openSuse & Ubuntu). Here's the script code I'm using now:

getent group $MYGROUP
if [ $? -ne 0 ] ; then
    sudo su -c "groupadd $MYGROUP"
sudo su -c "useradd mynewuser -p mypassword -m -g $PRIMARYGRP -G $MYGROUP"

There are several problems with the user account it creates on Ubuntu.

  • the terminal prompt isn't set (echo $PS1 returns nothing)
  • the arrow keys and tab key do not work correctly in the terminal
  • the password doesn't seem to work (although I'm still unclear exactly what this issue is)
  • the /etc/sudoers rights set for this new user are not honored

If instead I manually create the user with adduser (instead of useradd) I don't have these problems. But I need a non-Debian-exclusive script or method of adding user accounts via my bash script.

I also had a previous question on this topic, but it was different enough that it is not relevant to this problem.

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This question was duplicated on ask ubuntu? askubuntu.com/q/319714/250556 – ThorSummoner Aug 31 '15 at 18:56
up vote 5 down vote accepted

The problem is that the default shell for a new user on Debian is /bin/sh so most of the features you're used to from bash aren't there. Try adding -s /bin/bash to your useradd command.

You can also change the default shell permanently by editing /etc/default/useradd.


The solution to automatically modify the password (as found by MountainX) is here

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thanks I will add that. I also need to solve the skeleton files issue. – MountainX Jul 13 '13 at 20:30
@MountainX Have you made sure that the .bashrc file hasn't been copied correctly? I have seen the behavior you describe on Debian before: .bashrc is copied correctly but is never used since the default shell is /bin/sh not /bin/bash. Just try setting the shell to /bin/bash and I bet most of your issues will disappear. – Joseph R. Jul 13 '13 at 20:37
@MountainX For reference purposes, though, the skeleton directory on Debian is /etc/skel – Joseph R. Jul 13 '13 at 20:47
Solution Summary: for the password problem, this solution works: unix.stackexchange.com/a/57806/15010. For the cursor key and prompt problems, adding -s /bin/bash to my existing useradd command works. The .bashrc files is indeed already present. I wish I could select both the answers by @UlrichSchwarz and @Joseph. – MountainX Jul 13 '13 at 20:55
@MountainX Answer updated to add your solution to the password issue. – Joseph R. Jul 13 '13 at 21:03

The cursor key and prompt problems sound like the skeleton files are not copied properly. Does the new user's home directory have a .bashrc?

As to the password, man useradd on Slack tells me

-p, --password PASSWORD The encrypted password, as returned by crypt(3). The default is to disable the password.

so you're probably not supposed to put the plaintext password there. I can't find a convenient way to call crypt manually right now, though, so maybe you'll need an extra call to sudo passwd $mynewuser.

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thank you! Do you have any idea where the SKEL files are that are used by default by Ubuntu with the adduser script (as opposed to useradd)? – MountainX Jul 13 '13 at 20:29
@MountainX: I'm not a Debian/Ubuntu person, try /etc/skel or /etc/skel.d maybe? – Ulrich Schwarz Jul 13 '13 at 20:31
what do you think of this answer? unix.stackexchange.com/a/57806/15010 Should I try that? – MountainX Jul 13 '13 at 20:35
Can't hurt to try. :) – Ulrich Schwarz Jul 13 '13 at 20:38
Hmmm... I wonder if mkpasswd(1) would help instead of crypt. It is Debian/Ubuntu-specific, though – Joseph R. Jul 13 '13 at 20:38

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