Problem with executing runtime command

Hi everyone,
when i execute the following command on a command line it is done within one minute:
d:\Applikationen\usr\local\wbin\sed.exe -e "/^#/d" D:\dokumente\file_1.txt > D:\dokumente\file_2.txtUnfortunately when i call the same command from within my application then nothing seems to happen:
       Runtime rt = Runtime.getRuntime();
       System.out.println("Runtime obtained");
       Process p = rt.exec(cmd);
       System.out.println("Command executed");
       int ex = p.waitFor();
       System.out.println("Exit code "+ex);

Read this
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html

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Sara,
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{code}
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{code}
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Issue with Executing OS commands from Stored Procedure
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