topic Re: useradd and default shell in Operating System - HP-UX

useradd and default shell

David Lodge — Wed, 22 Mar 2006 11:10:45 GMT

Has anybody managed to get useradd to use a sensible shell (e.g. /usr/bin/sh) for the default shell (/sbin/sh) when creating a user.

The manual page for useradd (1M) states that the shell can be set as a default, but then contradicts itself when it describes the parameters.

Mangling the /etc/default/useradd file also failed to have any effect.

Re: useradd and default shell

Rick Garland — Wed, 22 Mar 2006 11:38:01 GMT

When you use the -s option with the useradd command, you are able to specify the shell.

'useradd -s /bin/ksh ...'

example snippet

Re: useradd and default shell

David Lodge — Wed, 22 Mar 2006 11:56:54 GMT

Thanks, but I already knew that one :-)

What I want was a way to set the default shell that useradd uses when one isn't supplied on the command line.

It looks like useradd is set up to support it (like the RHEL version of useradd) but it doesn't work.

Re: useradd and default shell

James R. Ferguson — Wed, 22 Mar 2006 12:44:00 GMT

Hi David:

Build a a wrapper script around the 'useradd' that sets the default shell argument to your choice and while passing the remaining arguments as is.

Regards!

...JRF...

Re: useradd and default shell

Rick Garland — Wed, 22 Mar 2006 12:57:12 GMT

Reviewing the man page for useradd, setting the default option for shell (-s) is not available.

useradd -D does not have the -s available. It is this -D switch that sets the defaults in the /etc/default/useradd file

Re: useradd and default shell

David Lodge — Wed, 22 Mar 2006 13:08:41 GMT

I noticed that, but the section on -D states that you can supply a shell to it (which is like the Linux version of useradd).

I suspect this is a weird bug on HP-UX, or they they never fully implemented the default saving. It's strange as it would be useful and not too difficult to implement. (I suppose it's the same reason why /sbin/sh is the default shell.)

I can't use a wrapper as it's an external program that creates the accounts, plus I never like altering any thing in a package (because as soon as you patch it all breaks).

Re: useradd and default shell

Arturo Galbiati — Thu, 23 Mar 2006 04:23:51 GMT

Hi,
a possbile workaround id to write a script to chnage the shell for the user just created by chsh command.
Just my .002$.
HTH,
Art

Re: useradd and default shell

RAC_1 — Thu, 23 Mar 2006 04:34:49 GMT

You can set default values for useradd with useradd -D command. Once set, those are used as default. Like follows.

useradd -D -s /usr/bin/ksh
Check it now.

useradd -D

Re: useradd and default shell

Muthukumar_5 — Thu, 23 Mar 2006 04:42:43 GMT

/sbin/sh is the default which used by useradd in hp-ux. You can change the execution of useradd as,

alias useradd='useradd -s /usr/bin/sh'

like that. When you execute useradd it will use /usr/bin/sh as shell type for that user.

--
Muthu

Re: useradd and default shell

RAC_1 — Thu, 23 Mar 2006 05:27:17 GMT

You can also prepare a file /etc/default/useradd. In this file you can put following and these are taken as default values.

#default useradd options
HOMEDIR /home
GROUPID 20
INACT -1
EXPIRE
CHOWN_HOMEDIR no
SHELL /usr/bin/ksh

Re: useradd and default shell

David Lodge — Thu, 23 Mar 2006 09:55:06 GMT

RAC: that's what I was trying to do (tested both). Unfortunately neither works on HP-UX 11.00.

This may be an 11.11 or 11.20 feature only :-(