topic Re: Setting an environment in Operating System - HP-UX

Setting an environment

Joe_Flow_1 — Wed, 20 Sep 2006 19:51:59 GMT

im trying to set up a user base environment changes for some software.

the instructions say to set it in the users .login file by using "setenv"

I read on hp that setenv is not avaliable on hp-ux11i V1 so I dont know what to do. I tried set and env but im not sure how to write it in the .login

here are the changes Im suppose to make

setenv PLATFORM `uname -s`_`uname -r`

there are a few others but its in the same format....

Thank you

Re: Setting an environment

Jonathan Fife — Wed, 20 Sep 2006 20:14:01 GMT

setenv is for csh. To use the same command in sh/ksh you need to use the export command -- eg.
setenv VAR1 "value"
becomes
VAR1=value;export VAR1

Alternatively, you could change your default shell to csh by modifying the default shell in /etc/passwd, but since csh is NOT a modern shell and lacks a lot of features I think you'd be better of converting the commands to a POSIX compatible format (sh, ksh, etc.)

If you have more questions about syntax I'm sure a lot of people here would love to help out.

Re: Setting an environment

Joe_Flow_1 — Wed, 20 Sep 2006 22:53:32 GMT

Should it matter what shell you are in if it goes into .login file since it is on boot.

Re: Setting an environment

RAC_1 — Wed, 20 Sep 2006 23:04:34 GMT

Set it in .login if login shell for user is csh, else in .cshrc or .profile in case of posix shell. (sh and ksh)

Re: Setting an environment

Joe_Flow_1 — Wed, 20 Sep 2006 23:18:09 GMT

so if the shell is csh....

setenv for V1 of hpux does not excist, what do I use...

The exprt he said earlier was for Posix shell...?

Re: Setting an environment

Ralph Grothe — Thu, 21 Sep 2006 02:10:39 GMT

The setenv command is a so called shell built in of csh.
So it's got to be available when you run this shell.

Re: Setting an environment

Joe_Flow_1 — Thu, 21 Sep 2006 08:42:12 GMT

The setenv and unsetenv functions exist on Tru64 UNIX, and will be available with the HP-UX 11i v2 May 2005 release. These functions are also available on a temporary basis in the Tru64 UNIX Migration Environment for HP-UX.\

http://devrsrc1.external.hp.com/STKT/impacts/i331.html

we have v1

Im not sure if what you told me is still true. This is why I thought setenv didnt work.

Re: Setting an environment

spex — Thu, 21 Sep 2006 09:04:49 GMT

Joe,

I think you're confusing shells and OS releases. First review /etc/passwd. Check which shells your users are using. Then change the appropriate file in the appropriate way based on the shell each user has assigned.

Under csh
==========
* Login script: /home/user/.login
* Login script: /home/user/.cshrc
* Syntax for setting/exporting an environmental variable: "sentenv VARIABLE value"

Under sh-posix, ksh, etc.
==========================
* Login script: /home/user/.profile
* Syntax for setting/exporting an environmental variable: "VARIABLE=value; export VARIABLE"

For other differences between various shells, see:
www.hep.phy.cam.ac.uk/lhcb/LHCbSoftTraining/documents/ShellChoice.pdf

As was already mentioned, use of csh is deprecated. You should switch your users over to sh-posix or ksh, if possible.

PCS