linux内核源码，ls命令源码，包括四个文件ls.c、ls.h、ls-dir.c、ls-ls.c、ls-vdir.c。-　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, 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.