1 /* `rm' file deletion utility for GNU.
2 Copyright (C) 88, 90, 91, 1994-2001 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18 /* Written by Paul Rubin, David MacKenzie, and Richard Stallman.
19 Reworked to use chdir and hash tables by Jim Meyering. */
21 /* Implementation overview:
23 In the `usual' case, RM saves no state for directories it is processing.
24 When a removal fails (either due to an error or to an interactive `no'
25 reply), the failure is noted (see description of `ht' in remove.c's
26 remove_cwd_entries function) so that when/if the containing directory
27 is reopened, RM doesn't try to remove the entry again.
29 RM may delete arbitrarily deep hierarchies -- even ones in which file
30 names (from root to leaf) are longer than the system-imposed maximum.
31 It does this by using chdir to change to each directory in turn before
32 removing the entries in that directory.
34 RM detects directory cycles by maintaining a table of the currently
35 active directories. See the description of active_dir_map in remove.c.
37 RM is careful to avoid forming full file names whenever possible.
38 A full file name is formed only when it is about to be used -- e.g.
39 in a diagnostic or in an interactive-mode prompt.
41 RM minimizes the number of lstat system calls it makes. On systems
42 that have valid d_type data in directory entries, RM makes only one
43 lstat call per command line argument -- regardless of the depth of
49 #include <sys/types.h>
58 /* The official name of this program (e.g., no `g' prefix). */
59 #define PROGRAM_NAME "rm"
62 "Paul Rubin, David MacKenzie, Richard Stallman, and Jim Meyering"
64 /* Name this program was run with. */
67 static struct option const long_opts[] =
69 {"directory", no_argument, NULL, 'd'},
70 {"force", no_argument, NULL, 'f'},
71 {"interactive", no_argument, NULL, 'i'},
72 {"recursive", no_argument, NULL, 'r'},
73 {"verbose", no_argument, NULL, 'v'},
74 {GETOPT_HELP_OPTION_DECL},
75 {GETOPT_VERSION_OPTION_DECL},
83 fprintf (stderr, _("Try `%s --help' for more information.\n"),
87 printf (_("Usage: %s [OPTION]... FILE...\n"), program_name);
89 Remove (unlink) the FILE(s).\n\
91 -d, --directory unlink directory, even if non-empty (super-user only)\n\
92 -f, --force ignore nonexistent files, never prompt\n\
93 -i, --interactive prompt before any removal\n\
94 -r, -R, --recursive remove the contents of directories recursively\n\
95 -v, --verbose explain what is being done\n\
96 --help display this help and exit\n\
97 --version output version information and exit\n\
99 To remove a file whose name starts with a `-', for example `-foo',\n\
100 use one of these commands:\n\
105 Note that if you use rm to remove a file, it is usually possible to recover\n\
106 the contents of that file. If you want more assurance that the contents are\n\
107 truly unrecoverable, consider using shred.\n\
109 program_name, program_name);
110 puts (_("\nReport bugs to <bug-fileutils@gnu.org>."));
116 rm_option_init (struct rm_options *x)
119 x->ignore_missing_files = 0;
122 x->stdin_tty = isatty (STDIN_FILENO);
127 main (int argc, char **argv)
133 program_name = argv[0];
134 setlocale (LC_ALL, "");
135 bindtextdomain (PACKAGE, LOCALEDIR);
136 textdomain (PACKAGE);
138 atexit (close_stdout);
142 while ((c = getopt_long (argc, argv, "dfirvR", long_opts, NULL)) != -1)
146 case 0: /* Long option. */
153 x.ignore_missing_files = 1;
157 x.ignore_missing_files = 0;
166 case_GETOPT_HELP_CHAR;
167 case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
175 if (x.ignore_missing_files)
179 error (0, 0, _("too few arguments"));
186 for (; optind < argc; optind++)
189 enum RM_status status;
191 /* Stripping slashes is harmless for rmdir;
192 if the arg is not a directory, it will fail with ENOTDIR. */
193 strip_trailing_slashes (argv[optind]);
194 fspec_init_file (&fs, argv[optind]);
195 status = rm (&fs, 1, &x);
196 assert (VALID_STATUS (status));
197 if (status == RM_ERROR)