<p>Sometimes this is because redirection and pipe characters are used in a way that doesn't make sense in the context of the process that's being launched. For example, executing <code>ls &gt; ...

If you switch code button many time, it will crash, i dont know how to fix it。 i would like called it "shit code" :( ...

Can some one explain to me why the following code is causing my external process to sleep and never exit Runtime rt = Runtime.getRuntime(); Process p = rt.exec(someCommand, null, somedirectory); ...