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Old 07-11-2006, 01:40 AM   #1
sanjeevkchopra
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Registered: May 2006
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How to access evviroment variables in startup scripts


Hi All,

Can somebody tell how the value of an environment variable can made available in startup script in Linux?

I have added JAVA_HOME=/usr/java/j2sdk1.4.2_10 in /etc/profile and a shell script testEnv in /etc/init.d/.

The script testEnv looks like this:

#! /bin/sh
echo JAVA_HOME=$JAVA_HOME

When I run script with command
# /etc/init.d/testEnv
it displays the values of JAVA_HOME which was set in /etc/profile.

But when the command
# service testEnv
is run it does not display any thing.

Can somebody tell why it doesn’t displays anything OR
Where should we define JAVA_HOME so that it should be visible to startup scripts OR
How the script should be modified so that it displays the value of JAVA_HOME set in /etc/profile or somewhere, when script executed at boot level ?

Regards,
Sanjeev Kumar.
 
Old 07-11-2006, 01:57 AM   #2
gilead
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Registered: Dec 2005
Location: Brisbane, Australia
Distribution: Slackware64 14.0
Posts: 4,125

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/etc/profile is read when you login. When the startup scripts are run they have a cut down environment as no user is logged in. I'd set JAVA_HOME in the script itself, but set it to a symlink that gets updated to point to the real location. That way your script won't break every time you upgrade your Java install.

For example, at a shell prompt create the link:
Code:
# ln -s /usr/local/jdk1.5.0_07 /usr/local/jdk
In your script:
Code:
JAVA_HOME=/usr/local/jdk
Hope that helps...
 
Old 07-11-2006, 05:30 AM   #3
sanjeevkchopra
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Registered: May 2006
Posts: 14

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equivalent of chkconfig and service

Thanks gilead.
I think that soluction'll work.

I have one more question.
Can you tell solaris equivalent of chkconfig and service command of redhat liunx

Thanks and regards
Sanjeev
 
Old 07-11-2006, 02:37 PM   #4
gilead
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Registered: Dec 2005
Location: Brisbane, Australia
Distribution: Slackware64 14.0
Posts: 4,125

Rep: Reputation: 164Reputation: 164
Sorry I can't - my experience with Solaris is mostly with shell scripts, not administration. The Solaris forum here at http://www.linuxquestions.org/questi...splay.php?f=20 should be able to help though.
 
  


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