mkdir.java

用JAVA写的shell程序

// JShell
// Copyright (C) 2000 Jack A. Orenstein
// 
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
// 
// This program 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
// General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
// 
// Jack A. Orenstein  [e-mail]

package jshell.command;

import java.io.IOException;
import java.util.*;
import jshell.*;

public class mkdir extends Command
{
    public void execute(String[] args)
        throws IOException
    {
        if (args.length != 1)
            err().println("mkdir must have exactly one argument.");
        else
        {
            String path = args[0];
            File file = File.create(path);
            boolean success = file.mkdirs();
            if (success)
                out().println(file.getPath());
            else
                err().println("Unable to create directory "+path);
        }
    }

    public void usage()
    {
        out().println("mkdir directory");
        out().println("    Creates the specified directory.");
    }
}