web photo gallery builders in Gnome?

[Timothy A. Holmes]

-----Original Message-----
From: ubuntu-users-bounces at lists.ubuntu.com
[mailto:ubuntu-users-bounces at lists.ubuntu.com] On Behalf Of Dan Martin
Sent: Friday, October 28, 2005 3:26 PM
To: 'Ubuntu Help and User Discussions'
Subject: RE: web photo gallery builders in Gnome?

> 
> Thanks so much for your help -- that solved it, and Jalbum is 
> now installing.
> 
> Could you please explain what I just did?  I have seen the 
> export command, but I don't think that I have ever used it before

A great question to ask.  It's easy to type what you are told, but to
gain
experience, you must understand what you are typing.

export is a command to set environment variables.  If you type "set" you
will see a list of all your current environment variables and their
values.


So lets go through this:

   export JAVA_HOME=/usr/lib/j2sdk1.5-sun/

This set the JAVA_HOME, which is used by the JVM and many Java
applications.



   export PATH=/usr/lib/j2sdk1.5-sun/bin:$PATH

$PATH represents the current value of PATH.  You can see for youself if
you
type "echo $PATH".  So the command I had you type prepended
"/usr/lib/j2sdk1.5-sun/bin" to your current PATH setting.

Before setting the path, when you typed "java", the "java" command at
/usr/bin/java was found (which is the Gnu Classpath java).  After
setting
the PATH, the "java" at /usr/lib/j2sdk1.5-sun/bin/java is found (which
is
Sun java).

Hope that clears it up.

-Dan


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[Timothy A. Holmes] 

It does clear things up greatly -- my next question is, how would I go
about setting those variables permanently -- It appears to me that the
export command sets those temporarily for that session? Or is it
necessary for those to be set permanently?

Thanks

TIM
Timothy A. Holmes
IT Manager / Network Admin / Web Master / Computer Teacher
 
Medina Christian Academy
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