How to execute a command from Java in Linux?

Hi,

I am trying to execute a command from Java in linux, like this:
String cmd = ..... ;
Process x = Runtime.getRuntime().exec( cmd );

But my problem is I need to setup some shell variables for my Linux command?

How can I do that?

And I am running this Runtime.getRuntime().exec() in my own servlet.

Thank you for any tips.

You can run the command inside of a short shell script, which would set up the shell variables, and then call the actual command.