/* **************************************************************************
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/**
 * Generic interface for a command.
 *
 * <p>When a class that implements this interface is registered with
 * the shell, then when that command is entered, all arguments are
 * passed to the shell through the execute method.
 *
 * <p>If the command wants to trap it's own exceptions, it may, but if not,
 * then an error message is printed by the shell when an exception is
 * thrown inside a command.
 * </p>
 */
public interface Command
{
   public void execute (SessionShell shell, String[] argv) throws Exception;
}