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import java.io.*;
class Exec{
public static void main(String []args)throws IOException{
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String command = "ls -l";
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Runtime rt = Runtime.getRuntime();
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Process p = null;
p = rt.exec(command);
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BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
String msg = null;
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while((msg = br.readLine())!=null){
System.out.println(msg);
}
br.close();
}
}
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