How to use an environment variable

["Keshavan, Rango" <ra...@fmr.com>]

I want my log4j.properties to use an environment variable which
specifies the base home directory, so my log directory will be off that.
Does anyone know how to do this?

Thanks!



 

 

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Rango Keshavan

617 563 2435

 

Re: How to use an environment variable

[Curt Arnold <ca...@apache.org>]

On Feb 14, 2006, at 10:44 AM, Keshavan, Rango wrote:

> I want my log4j.properties to use an environment variable which  
> specifies the base home directory, so my log directory will be off  
> that.  Does anyone know how to do this?
>
> Thanks!
>
My recollection is that log4cxx exposes all environment variables in  
the same way that LOG4J exposes JVM system properties.   Which means  
that you would just use ${HOME}/foo.log to create a foo.log directory  
in the user's home directory.  Also, I believe that the current SVN  
HEAD also exposes the equivalent of some of the built-in Java  
properties so you could also do ${java.io.tmpdir}/foo.txt or $ 
{user.home}/foo.txt.