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#1 (**permalink**) 01-18-2008, 05:14 AM

Hi,

I just modified the S99Local in the /rc.d and want to explore the
CLASSPATH into enviroment.

Tried several times, I found after S99Local executed, the CLASSPATH
still not be added.

I have two questions here:

1. Is there any other files executed after S99Local. I think S99Local
should be the last step in startup linux.
2. Why I use shell script can not add CLASSPATH?
The script is like:
export CLASSPATH=/opt/j2ee/...
exit 0

but if I use command line, ex. $export CLASSPATH=/opt/j2ee/... , it
works.

I use RH9.

Any suggestion.

Steven

#2 (**permalink**) 01-18-2008, 05:14 AM

steven wrote:

> Hi,
>
> I just modified the S99Local in the /rc.d and want to explore the
> CLASSPATH into enviroment.

You want to what? What does "explore the CLASSPATH into enviroment" actually
mean?

>
> Tried several times, I found after S99Local executed, the CLASSPATH
> still not be added.

An "export" within a shell script will not have any effect on its parent
shell environment.

>
> I have two questions here:
>
> 1. Is there any other files executed after S99Local. I think S99Local
> should be the last step in startup linux.
> 2. Why I use shell script can not add CLASSPATH?
> The script is like:
> export CLASSPATH=/opt/j2ee/...
> exit 0

You cannot do it this way. The export does not affect the parent of the
shell.

Why don't you run a test? Like this:

$ test="original test"
$ sh
(child shell) $ test="child test";export test
(child shell) $ exit
$ echo $test
original test

>
> but if I use command line, ex. $export CLASSPATH=/opt/j2ee/... , it
> works.
>
> I use RH9.
>
> Any suggestion.

What are you trying to do? Please state the problem, not your idea of a
solution. And why not run some simple tests?

--
Paul Lutus
http://www.arachnoid.com

#3 (**permalink**) 01-18-2008, 05:14 AM

steven <yu271637@yorku.ca> wrote:
> I just modified the S99Local in the /rc.d and want to explore the
> CLASSPATH into enviroment.
>
> Tried several times, I found after S99Local executed, the CLASSPATH
> still not be added.

I think you mean 'export' and not 'explore'.

The reason for the behaviour you experienced is that S99Local is
executed in a subshell (see 'man bash', section COMMAND EXECUTION)
since it is not sourced (see 'man bash', section SHELL BUILTIN COMMANDS,
command 'source').

Put the CLASSPATH in /etc/profile if it should apply to all users and
commands and in .bash_profile if it should apply to a single user
(see 'man bash', sections INVOCATION and FILES).

Yours,
Laurenz Albe

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