topic Re: Valid profile shell in Operating System - HP-UX

Valid profile shell

yoge — Tue, 06 Apr 2010 18:00:49 GMT

Hi, can anyone let me know which is the valid profile shell?

Re: Valid profile shell

James R. Ferguson — Tue, 06 Apr 2010 18:10:15 GMT

Hi:

For the 'root' account, *never* change the login shell as defined in '/etc/passwd' from the Posix shell '/sbin/sh'. To do so, may lead to an un-startable system.

In HP-UX the Posix shell is a Korn-like superset. Non-root users should use '/usr/bin/sh' which uses dynamically linked libraries to reduce the memory footprint. The root user must use a statically linked shell '/sbin/sh' as I noted. This allows the root account to function in single-user mode when '/usr' isn't mounted.

The HP-UX Posix shell first sources (reads) '/etc/profile' and then '${HOME}/.profile'. You can customize '/etc/profile' for all user's needs; and '${HOME}/.profile' on an individual basis as necessary.

Regards!

...JRF...

Re: Valid profile shell

yoge — Tue, 06 Apr 2010 18:40:22 GMT

what about pfsh shell?

Re: Valid profile shell

James R. Ferguson — Tue, 06 Apr 2010 18:46:21 GMT

Hi:

> what about pfsh shell?

You can specify that as the default shell for any user *other than* 'root that you want. Change the default program (shell) in '/etc/passwd' accordingly. You can use 'chsh' to do this (see the manpages).

Since you wish to define and use a non-standard shell, you should create '/etc/shells' (if you don't already have it) and add the absolute path for 'pfsh'.

The file, '/etc/shells' should be readable by everyone and contain (at least):

/sbin/sh
/usr/bin/sh
/usr/bin/rsh
/usr/bin/ksh
/usr/bin/rksh
/usr/bin/csh
/usr/bin/keysh

Add '/usr/bin/pfsh' to the end in your case assuming that that is the correct absolute path.

Regards!

...JRF...

Re: Valid profile shell

yoge — Tue, 06 Apr 2010 21:12:37 GMT

*)bash
*)csh
*)pfsh

which one is the valid profile shell here?

Re: Valid profile shell

James R. Ferguson — Tue, 06 Apr 2010 21:29:22 GMT

Hi (again):

> which one is the valid profile shell here?

I don't quite know what you are asking. See:

http://docs.sun.com/app/docs/doc/816-5165/pfsh-1?a=view

Regards!

...JRF...

Re: Valid profile shell

Dennis Handly — Tue, 06 Apr 2010 22:10:39 GMT

>which one is the valid profile shell here?

(None of these are "real" shells. Only sh or ksh. :-)
What do you mean by "profile shell"?
From JRF's URL, I don't think they exist on HP-UX.

Re: Valid profile shell

yoge — Tue, 06 Apr 2010 23:03:31 GMT

Thanks JRF. I got it from your link.