/*
* $Id$
*
* Copyright (C) 2003-2014 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.command.common;
import java.io.PrintWriter;
import org.jnode.shell.AbstractCommand;
import org.jnode.shell.syntax.Argument;
import org.jnode.shell.syntax.StringArgument;
/**
* Echo the command's arguments to its output.
*
* @author epr
* @author crawley@jnode.org
*/
public class EchoCommand extends AbstractCommand {
private static final String help_words = "the text to be printed";
private static final String help_super = "Print text to standard output";
private final StringArgument argWords;
public EchoCommand() {
super(help_super);
argWords = new StringArgument("text", Argument.MULTIPLE, help_words);
registerArguments(argWords);
}
public static void main(String[] args) throws Exception {
new EchoCommand().execute(args);
}
/**
* Execute the command
*/
public void execute() throws Exception {
PrintWriter out = getOutput().getPrintWriter();
String[] words = argWords.getValues();
for (int i = 0; i < words.length; i++) {
if (i > 0) {
out.print(' ');
}
out.print(words[i]);
}
out.println();
}
}