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The Shell module

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import org.crsh.cli.Required
import org.crsh.cli.descriptor.Format
import org.crsh.cli.Usage
import org.crsh.cli.Command
import org.crsh.cli.Argument;

class man {
  @Usage("format and display the on-line manual pages")
  @Command
  Object main(@Usage("the command") @Argument @Required String command) {
    def cmd = crash.getCommand(command);
    if (cmd != null) {
      return cmd.describe(unmatched, Format.MAN);
    } else {
      return "Command $command not found";
    }
  }
}