os161-1.99
 All Data Structures
rm.c
00001 /*
00002  * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
00003  *      The President and Fellows of Harvard College.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  * 3. Neither the name of the University nor the names of its contributors
00014  *    may be used to endorse or promote products derived from this software
00015  *    without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
00018  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
00021  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00023  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00024  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00025  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00026  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00027  * SUCH DAMAGE.
00028  */
00029 
00030 #include <unistd.h>
00031 #include <err.h>
00032 
00033 /*
00034  * rm - remove (delete) files
00035  * Usage: rm file...
00036  */
00037 
00038 /* Delete a single file. */
00039 static
00040 void
00041 doremove(const char *file)
00042 {
00043         if (remove(file)) {
00044                 err(1, "%s", file);
00045         }
00046 }
00047 
00048 int
00049 main(int argc, char *argv[])
00050 {
00051         int i;
00052 
00053         if (argc<2) {
00054                 /* Must have at least one file. */
00055                 errx(1, "Usage: rm FILES");
00056         }
00057 
00058         /* Just delete everything on the command line. */
00059         for (i=1; i<argc; i++) {
00060                 doremove(argv[i]);
00061         }
00062 
00063         return 0;
00064 }
 All Data Structures