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Execute operatingsystem commands from Java classes?

 
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How can I execute operatingsystem commands from my Java classes?

So that I on a Linux box could i.e. execute "ls -l" etc.
 
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Class: java.lang.Runtime
Methods: exec( /*various parameters*/ ):

Example: Runtime.getRuntime().exec( "myprog.exe" );
[ November 23, 2006: Message edited by: Peter Taucher ]
 
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To answer your question less literally, you can use the java.io.File class to list the files in a directory using the list() and related methods.
 
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