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Running A COMMAND in the background

In my super task management tool, I need to open NETBEAN with very short comand like './r net '.
so I added this code:
 /bin/sh "/home/sxu/netbeans-6.9.1/bin/netbeans"

What happened? it open Netbean, but in the shell, it never stop util I close netbeans or press Ctrl+C.
As I really need to run it in the background, need to find a solution. Easy, here it is:

  /bin/sh "/home/sxu/netbeans-6.9.1/bin/netbeans" &

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