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-rw-r--r--src/mv.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/src/mv.c b/src/mv.c
index 98309a412..a5ab95dcf 100644
--- a/src/mv.c
+++ b/src/mv.c
@@ -1,5 +1,5 @@
/* mv -- move or rename files
- Copyright (C) 86, 89, 90, 91, 1995-2008 Free Software Foundation, Inc.
+ Copyright (C) 86, 89, 90, 91, 1995-2009 Free Software Foundation, Inc.
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
@@ -62,6 +62,7 @@ static struct option const long_options[] =
{"backup", optional_argument, NULL, 'b'},
{"force", no_argument, NULL, 'f'},
{"interactive", no_argument, NULL, 'i'},
+ {"no-clobber", no_argument, NULL, 'n'},
{"no-target-directory", no_argument, NULL, 'T'},
{"strip-trailing-slashes", no_argument, NULL, STRIP_TRAILING_SLASHES_OPTION},
{"suffix", required_argument, NULL, 'S'},
@@ -296,6 +297,8 @@ Mandatory arguments to long options are mandatory for short options too.\n\
-b like --backup but does not accept an argument\n\
-f, --force do not prompt before overwriting\n\
-i, --interactive prompt before overwrite\n\
+ -n, --no-clobber do not overwrite an existing file\n\
+If you specify more than one of -i, -f, -n, only the final one takes effect.\n\
"), stdout);
fputs (_("\
--strip-trailing-slashes remove any trailing slashes from each SOURCE\n\
@@ -358,7 +361,7 @@ main (int argc, char **argv)
we'll actually use backup_suffix_string. */
backup_suffix_string = getenv ("SIMPLE_BACKUP_SUFFIX");
- while ((c = getopt_long (argc, argv, "bfit:uvS:T", long_options, NULL))
+ while ((c = getopt_long (argc, argv, "bfint:uvS:T", long_options, NULL))
!= -1)
{
switch (c)
@@ -374,6 +377,9 @@ main (int argc, char **argv)
case 'i':
x.interactive = I_ASK_USER;
break;
+ case 'n':
+ x.interactive = I_ALWAYS_NO;
+ break;
case STRIP_TRAILING_SLASHES_OPTION:
remove_trailing_slashes = true;
break;
@@ -446,6 +452,13 @@ main (int argc, char **argv)
quote (file[n_files - 1]));
}
+ if (make_backups && x.interactive == I_ALWAYS_NO)
+ {
+ error (0, 0,
+ _("options --backup and --no-clobber are mutually exclusive"));
+ usage (EXIT_FAILURE);
+ }
+
if (backup_suffix_string)
simple_backup_suffix = xstrdup (backup_suffix_string);