Commit | Line | Data |
---|---|---|
f716a1dd | 1 | # File/Copy.pm. Written in 1994 by Aaron Sherman <ajs@ajs.com>. This |
2 | # source code has been placed in the public domain by the author. | |
3 | # Please be kind and preserve the documentation. | |
4 | # | |
71be2cbc | 5 | # Additions copyright 1996 by Charles Bailey. Permission is granted |
6 | # to distribute the revised code under the same terms as Perl itself. | |
f716a1dd | 7 | |
8 | package File::Copy; | |
9 | ||
3b825e41 | 10 | use 5.006; |
71be2cbc | 11 | use strict; |
32450e7f | 12 | use warnings; no warnings 'newline'; |
6c254d95 | 13 | use File::Spec; |
96a91e01 | 14 | use Config; |
e63b3379 | 15 | # During perl build, we need File::Copy but Scalar::Util might not be built yet |
e55c0a82 PR |
16 | # And then we need these games to avoid loading overload, as that will |
17 | # confuse miniperl during the bootstrap of perl. | |
18 | my $Scalar_Util_loaded = eval q{ require Scalar::Util; require overload; 1 }; | |
17f410f9 GS |
19 | our(@ISA, @EXPORT, @EXPORT_OK, $VERSION, $Too_Big, $Syscopy_is_copy); |
20 | sub copy; | |
21 | sub syscopy; | |
22 | sub cp; | |
23 | sub mv; | |
71be2cbc | 24 | |
ed9113fa | 25 | $VERSION = '2.30'; |
f716a1dd | 26 | |
71be2cbc | 27 | require Exporter; |
28 | @ISA = qw(Exporter); | |
29 | @EXPORT = qw(copy move); | |
30 | @EXPORT_OK = qw(cp mv); | |
f716a1dd | 31 | |
441496b2 | 32 | $Too_Big = 1024 * 1024 * 2; |
f716a1dd | 33 | |
8878f897 T |
34 | sub croak { |
35 | require Carp; | |
36 | goto &Carp::croak; | |
37 | } | |
38 | ||
754f2cd0 MS |
39 | sub carp { |
40 | require Carp; | |
41 | goto &Carp::carp; | |
42 | } | |
43 | ||
6c254d95 | 44 | sub _catname { |
71be2cbc | 45 | my($from, $to) = @_; |
46 | if (not defined &basename) { | |
47 | require File::Basename; | |
48 | import File::Basename 'basename'; | |
49 | } | |
6c254d95 | 50 | |
6c254d95 | 51 | return File::Spec->catfile($to, basename($from)); |
f716a1dd | 52 | } |
53 | ||
236a0738 | 54 | # _eq($from, $to) tells whether $from and $to are identical |
236a0738 | 55 | sub _eq { |
e55c0a82 PR |
56 | my ($from, $to) = map { |
57 | $Scalar_Util_loaded && Scalar::Util::blessed($_) | |
58 | && overload::Method($_, q{""}) | |
59 | ? "$_" | |
60 | : $_ | |
61 | } (@_); | |
62 | return '' if ( (ref $from) xor (ref $to) ); | |
63 | return $from == $to if ref $from; | |
64 | return $from eq $to; | |
236a0738 AF |
65 | } |
66 | ||
f716a1dd | 67 | sub copy { |
71be2cbc | 68 | croak("Usage: copy(FROM, TO [, BUFFERSIZE]) ") |
f716a1dd | 69 | unless(@_ == 2 || @_ == 3); |
70 | ||
71 | my $from = shift; | |
72 | my $to = shift; | |
71be2cbc | 73 | |
671637fe NC |
74 | my $size; |
75 | if (@_) { | |
76 | $size = shift(@_) + 0; | |
77 | croak("Bad buffer size for copy: $size\n") unless ($size > 0); | |
78 | } | |
79 | ||
71be2cbc | 80 | my $from_a_handle = (ref($from) |
81 | ? (ref($from) eq 'GLOB' | |
d704f39a MG |
82 | || UNIVERSAL::isa($from, 'GLOB') |
83 | || UNIVERSAL::isa($from, 'IO::Handle')) | |
71be2cbc | 84 | : (ref(\$from) eq 'GLOB')); |
85 | my $to_a_handle = (ref($to) | |
86 | ? (ref($to) eq 'GLOB' | |
d704f39a MG |
87 | || UNIVERSAL::isa($to, 'GLOB') |
88 | || UNIVERSAL::isa($to, 'IO::Handle')) | |
71be2cbc | 89 | : (ref(\$to) eq 'GLOB')); |
90 | ||
236a0738 | 91 | if (_eq($from, $to)) { # works for references, too |
754f2cd0 | 92 | carp("'$from' and '$to' are identical (not copied)"); |
39b80fd9 | 93 | return 0; |
96a91e01 | 94 | } |
95 | ||
43ddfa56 TC |
96 | if (!$from_a_handle && !$to_a_handle && -d $to && ! -d $from) { |
97 | $to = _catname($from, $to); | |
98 | } | |
99 | ||
ac7b122d | 100 | if ((($Config{d_symlink} && $Config{d_readlink}) || $Config{d_link}) && |
4c38808d | 101 | !($^O eq 'MSWin32' || $^O eq 'os2')) { |
ac7b122d SR |
102 | my @fs = stat($from); |
103 | if (@fs) { | |
96a91e01 | 104 | my @ts = stat($to); |
16f708c9 | 105 | if (@ts && $fs[0] == $ts[0] && $fs[1] == $ts[1] && !-p $from) { |
754f2cd0 MS |
106 | carp("'$from' and '$to' are identical (not copied)"); |
107 | return 0; | |
96a91e01 | 108 | } |
109 | } | |
110 | } | |
a0084943 SH |
111 | elsif (_eq($from, $to)) { |
112 | carp("'$from' and '$to' are identical (not copied)"); | |
113 | return 0; | |
114 | } | |
96a91e01 | 115 | |
1a04d035 | 116 | if (defined &syscopy && !$Syscopy_is_copy |
e6434134 | 117 | && !$to_a_handle |
1d84e8df | 118 | && !($from_a_handle && $^O eq 'os2' ) # OS/2 cannot handle handles |
7509b657 | 119 | && !($from_a_handle && $^O eq 'MSWin32') |
2986a63f | 120 | && !($from_a_handle && $^O eq 'NetWare') |
1a04d035 | 121 | ) |
71be2cbc | 122 | { |
6865d65a CB |
123 | if ($^O eq 'VMS' && -e $from |
124 | && ! -d $to && ! -d $from) { | |
4c38808d | 125 | |
6865d65a CB |
126 | # VMS natively inherits path components from the source of a |
127 | # copy, but we want the Unixy behavior of inheriting from | |
128 | # the current working directory. Also, default in a trailing | |
129 | # dot for null file types. | |
4c38808d | 130 | |
6865d65a | 131 | $to = VMS::Filespec::rmsexpand(VMS::Filespec::vmsify($to), '.'); |
4c38808d | 132 | |
6865d65a CB |
133 | # Get rid of the old versions to be like UNIX |
134 | 1 while unlink $to; | |
4c38808d JM |
135 | } |
136 | ||
6865d65a | 137 | return syscopy($from, $to) || 0; |
71be2cbc | 138 | } |
139 | ||
140 | my $closefrom = 0; | |
141 | my $closeto = 0; | |
671637fe | 142 | my ($status, $r, $buf); |
48a5c399 | 143 | local($\) = ''; |
f716a1dd | 144 | |
23ba2776 | 145 | my $from_h; |
71be2cbc | 146 | if ($from_a_handle) { |
23ba2776 | 147 | $from_h = $from; |
f716a1dd | 148 | } else { |
cfa308ca | 149 | open $from_h, "<", $from or goto fail_open1; |
23ba2776 | 150 | binmode $from_h or die "($!,$^E)"; |
e63b3379 | 151 | $closefrom = 1; |
1a04d035 A |
152 | } |
153 | ||
671637fe NC |
154 | # Seems most logical to do this here, in case future changes would want to |
155 | # make this croak for some reason. | |
156 | unless (defined $size) { | |
157 | $size = tied(*$from_h) ? 0 : -s $from_h || 0; | |
158 | $size = 1024 if ($size < 512); | |
159 | $size = $Too_Big if ($size > $Too_Big); | |
160 | } | |
161 | ||
23ba2776 | 162 | my $to_h; |
71be2cbc | 163 | if ($to_a_handle) { |
23ba2776 | 164 | $to_h = $to; |
1a04d035 | 165 | } else { |
fff5c6e2 | 166 | $to_h = \do { local *FH }; # XXX is this line obsolete? |
e63b3379 | 167 | open $to_h, ">", $to or goto fail_open2; |
91ca337e | 168 | binmode $to_h or die "($!,$^E)"; |
71be2cbc | 169 | $closeto = 1; |
1a04d035 | 170 | } |
f716a1dd | 171 | |
71be2cbc | 172 | $! = 0; |
173 | for (;;) { | |
174 | my ($r, $w, $t); | |
23ba2776 | 175 | defined($r = sysread($from_h, $buf, $size)) |
71be2cbc | 176 | or goto fail_inner; |
177 | last unless $r; | |
178 | for ($w = 0; $w < $r; $w += $t) { | |
23ba2776 | 179 | $t = syswrite($to_h, $buf, $r - $w, $w) |
71be2cbc | 180 | or goto fail_inner; |
f716a1dd | 181 | } |
182 | } | |
71be2cbc | 183 | |
23ba2776 DW |
184 | close($to_h) || goto fail_open2 if $closeto; |
185 | close($from_h) || goto fail_open1 if $closefrom; | |
71be2cbc | 186 | |
48a5c399 | 187 | # Use this idiom to avoid uninitialized value warning. |
f716a1dd | 188 | return 1; |
1a04d035 | 189 | |
f716a1dd | 190 | # All of these contortions try to preserve error messages... |
191 | fail_inner: | |
192 | if ($closeto) { | |
193 | $status = $!; | |
194 | $! = 0; | |
23ba2776 | 195 | close $to_h; |
f716a1dd | 196 | $! = $status unless $!; |
197 | } | |
198 | fail_open2: | |
199 | if ($closefrom) { | |
200 | $status = $!; | |
201 | $! = 0; | |
23ba2776 | 202 | close $from_h; |
f716a1dd | 203 | $! = $status unless $!; |
204 | } | |
205 | fail_open1: | |
f716a1dd | 206 | return 0; |
207 | } | |
9b957b78 | 208 | |
e63b3379 | 209 | sub cp { |
71be2cbc | 210 | my($from,$to) = @_; |
e63b3379 CB |
211 | my(@fromstat) = stat $from; |
212 | my(@tostat) = stat $to; | |
213 | my $perm; | |
214 | ||
215 | return 0 unless copy(@_) and @fromstat; | |
216 | ||
217 | if (@tostat) { | |
218 | $perm = $tostat[2]; | |
219 | } else { | |
220 | $perm = $fromstat[2] & ~(umask || 0); | |
221 | @tostat = stat $to; | |
222 | } | |
223 | # Might be more robust to look for S_I* in Fcntl, but we're | |
224 | # trying to avoid dependence on any XS-containing modules, | |
225 | # since File::Copy is used during the Perl build. | |
226 | $perm &= 07777; | |
227 | if ($perm & 06000) { | |
228 | croak("Unable to check setuid/setgid permissions for $to: $!") | |
229 | unless @tostat; | |
230 | ||
231 | if ($perm & 04000 and # setuid | |
232 | $fromstat[4] != $tostat[4]) { # owner must match | |
233 | $perm &= ~06000; | |
234 | } | |
235 | ||
ed62bc33 | 236 | if ($perm & 02000 && $> != 0) { # if not root, setgid |
e63b3379 CB |
237 | my $ok = $fromstat[5] == $tostat[5]; # group must match |
238 | if ($ok) { # and we must be in group | |
ed62bc33 | 239 | $ok = grep { $_ == $fromstat[5] } split /\s+/, $) |
e63b3379 CB |
240 | } |
241 | $perm &= ~06000 unless $ok; | |
242 | } | |
243 | } | |
244 | return 0 unless @tostat; | |
245 | return 1 if $perm == ($tostat[2] & 07777); | |
246 | return eval { chmod $perm, $to; } ? 1 : 0; | |
247 | } | |
248 | ||
249 | sub _move { | |
250 | croak("Usage: move(FROM, TO) ") unless @_ == 3; | |
251 | ||
252 | my($from,$to,$fallback) = @_; | |
754f2cd0 | 253 | |
fa76202e | 254 | my($fromsz,$tosz1,$tomt1,$tosz2,$tomt2,$sts,$ossts); |
441496b2 | 255 | |
71be2cbc | 256 | if (-d $to && ! -d $from) { |
257 | $to = _catname($from, $to); | |
258 | } | |
259 | ||
260 | ($tosz1,$tomt1) = (stat($to))[7,9]; | |
261 | $fromsz = -s $from; | |
e6434134 IZ |
262 | if ($^O eq 'os2' and defined $tosz1 and defined $fromsz) { |
263 | # will not rename with overwrite | |
264 | unlink $to; | |
265 | } | |
4c38808d | 266 | |
6865d65a CB |
267 | if ($^O eq 'VMS' && -e $from |
268 | && ! -d $to && ! -d $from) { | |
fc06fdeb | 269 | |
6865d65a CB |
270 | # VMS natively inherits path components from the source of a |
271 | # copy, but we want the Unixy behavior of inheriting from | |
272 | # the current working directory. Also, default in a trailing | |
273 | # dot for null file types. | |
4c38808d | 274 | |
6865d65a | 275 | $to = VMS::Filespec::rmsexpand(VMS::Filespec::vmsify($to), '.'); |
4c38808d JM |
276 | |
277 | # Get rid of the old versions to be like UNIX | |
6865d65a | 278 | 1 while unlink $to; |
4c38808d JM |
279 | } |
280 | ||
6865d65a | 281 | return 1 if rename $from, $to; |
71be2cbc | 282 | |
71be2cbc | 283 | # Did rename return an error even though it succeeded, because $to |
284 | # is on a remote NFS file system, and NFS lost the server's ack? | |
285 | return 1 if defined($fromsz) && !-e $from && # $from disappeared | |
286 | (($tosz2,$tomt2) = (stat($to))[7,9]) && # $to's there | |
c9fbd0c8 JM |
287 | ((!defined $tosz1) || # not before or |
288 | ($tosz1 != $tosz2 or $tomt1 != $tomt2)) && # was changed | |
71be2cbc | 289 | $tosz2 == $fromsz; # it's all there |
1a04d035 | 290 | |
71be2cbc | 291 | ($tosz1,$tomt1) = (stat($to))[7,9]; # just in case rename did something |
762548ba MS |
292 | |
293 | { | |
294 | local $@; | |
295 | eval { | |
754f2cd0 | 296 | local $SIG{__DIE__}; |
e63b3379 | 297 | $fallback->($from,$to) or die; |
762548ba MS |
298 | my($atime, $mtime) = (stat($from))[8,9]; |
299 | utime($atime, $mtime, $to); | |
300 | unlink($from) or die; | |
301 | }; | |
302 | return 1 unless $@; | |
303 | } | |
fa76202e | 304 | ($sts,$ossts) = ($! + 0, $^E + 0); |
1a04d035 | 305 | |
71be2cbc | 306 | ($tosz2,$tomt2) = ((stat($to))[7,9],0,0) if defined $tomt1; |
307 | unlink($to) if !defined($tomt1) or $tomt1 != $tomt2 or $tosz1 != $tosz2; | |
308 | ($!,$^E) = ($sts,$ossts); | |
309 | return 0; | |
441496b2 | 310 | } |
9b957b78 | 311 | |
e63b3379 CB |
312 | sub move { _move(@_,\©); } |
313 | sub mv { _move(@_,\&cp); } | |
71be2cbc | 314 | |
9b957b78 | 315 | # &syscopy is an XSUB under OS/2 |
1d84e8df JH |
316 | unless (defined &syscopy) { |
317 | if ($^O eq 'VMS') { | |
318 | *syscopy = \&rmscopy; | |
cf2f24a4 JD |
319 | } elsif ($^O eq 'MSWin32' && defined &DynaLoader::boot_DynaLoader) { |
320 | # Win32::CopyFile() fill only work if we can load Win32.xs | |
7509b657 GS |
321 | *syscopy = sub { |
322 | return 0 unless @_ == 2; | |
323 | return Win32::CopyFile(@_, 1); | |
324 | }; | |
1d84e8df | 325 | } else { |
1a04d035 | 326 | $Syscopy_is_copy = 1; |
1d84e8df JH |
327 | *syscopy = \© |
328 | } | |
329 | } | |
f716a1dd | 330 | |
331 | 1; | |
332 | ||
333 | __END__ | |
a5f75d66 | 334 | |
f716a1dd | 335 | =head1 NAME |
336 | ||
337 | File::Copy - Copy files or filehandles | |
338 | ||
a5f75d66 | 339 | =head1 SYNOPSIS |
f716a1dd | 340 | |
5ce10329 | 341 | use File::Copy; |
f716a1dd | 342 | |
86e39d7d | 343 | copy("sourcefile","destinationfile") or die "Copy failed: $!"; |
5ce10329 | 344 | copy("Copy.pm",\*STDOUT); |
86e39d7d | 345 | move("/dev1/sourcefile","/dev2/destinationfile"); |
f716a1dd | 346 | |
78e38bb6 | 347 | use File::Copy "cp"; |
f716a1dd | 348 | |
23f3aea0 | 349 | $n = FileHandle->new("/a/file","r"); |
c6dfe06b | 350 | cp($n,"x"); |
f716a1dd | 351 | |
352 | =head1 DESCRIPTION | |
353 | ||
441496b2 CB |
354 | The File::Copy module provides two basic functions, C<copy> and |
355 | C<move>, which are useful for getting the contents of a file from | |
356 | one place to another. | |
357 | ||
358 | =over 4 | |
359 | ||
0cdecedb GS |
360 | =item copy |
361 | X<copy> X<cp> | |
441496b2 CB |
362 | |
363 | The C<copy> function takes two | |
f716a1dd | 364 | parameters: a file to copy from and a file to copy to. Either |
365 | argument may be a string, a FileHandle reference or a FileHandle | |
366 | glob. Obviously, if the first argument is a filehandle of some | |
367 | sort, it will be read from, and if it is a file I<name> it will | |
368 | be opened for reading. Likewise, the second argument will be | |
ab3dadc3 NG |
369 | written to. If the second argument does not exist but the parent |
370 | directory does exist, then it will be created. Trying to copy | |
371 | a file into a non-existent directory is an error. | |
372 | Trying to copy a file on top of itself is also an error. | |
ed9113fa | 373 | C<copy> will not overwrite read-only files. |
71be2cbc | 374 | |
1f3ebc3b A |
375 | If the destination (second argument) already exists and is a directory, |
376 | and the source (first argument) is not a filehandle, then the source | |
377 | file will be copied into the directory specified by the destination, | |
378 | using the same base name as the source file. It's a failure to have a | |
379 | filehandle as the source when the destination is a directory. | |
380 | ||
71be2cbc | 381 | B<Note that passing in |
9b957b78 | 382 | files as handles instead of names may lead to loss of information |
383 | on some operating systems; it is recommended that you use file | |
e6434134 | 384 | names whenever possible.> Files are opened in binary mode where |
8dcee03e | 385 | applicable. To get a consistent behaviour when copying from a |
e6434134 | 386 | filehandle to a file, use C<binmode> on the filehandle. |
f716a1dd | 387 | |
388 | An optional third parameter can be used to specify the buffer | |
389 | size used for copying. This is the number of bytes from the | |
3a964d77 | 390 | first file, that will be held in memory at any given time, before |
f716a1dd | 391 | being written to the second file. The default buffer size depends |
338de517 | 392 | upon the file, but will generally be the whole file (up to 2MB), or |
f716a1dd | 393 | 1k for filehandles that do not reference files (eg. sockets). |
394 | ||
e63b3379 CB |
395 | You may use the syntax C<use File::Copy "cp"> to get at the C<cp> |
396 | alias for this function. The syntax is I<exactly> the same. The | |
402c5d17 | 397 | behavior is nearly the same as well: as of version 2.15, C<cp> will |
e63b3379 CB |
398 | preserve the source file's permission bits like the shell utility |
399 | C<cp(1)> would do, while C<copy> uses the default permissions for the | |
400 | target file (which may depend on the process' C<umask>, file | |
401 | ownership, inherited ACLs, etc.). If an error occurs in setting | |
402 | permissions, C<cp> will return 0, regardless of whether the file was | |
403 | successfully copied. | |
9c76cba2 | 404 | |
0cdecedb GS |
405 | =item move |
406 | X<move> X<mv> X<rename> | |
441496b2 CB |
407 | |
408 | The C<move> function also takes two parameters: the current name | |
71be2cbc | 409 | and the intended name of the file to be moved. If the destination |
410 | already exists and is a directory, and the source is not a | |
411 | directory, then the source file will be renamed into the directory | |
412 | specified by the destination. | |
413 | ||
414 | If possible, move() will simply rename the file. Otherwise, it copies | |
415 | the file to the new location and deletes the original. If an error occurs | |
416 | during this copy-and-delete process, you may be left with a (possibly partial) | |
441496b2 CB |
417 | copy of the file under the destination name. |
418 | ||
e63b3379 | 419 | You may use the C<mv> alias for this function in the same way that |
402c5d17 | 420 | you may use the C<cp> alias for C<copy>. |
441496b2 | 421 | |
0cdecedb GS |
422 | =item syscopy |
423 | X<syscopy> | |
441496b2 | 424 | |
9b957b78 | 425 | File::Copy also provides the C<syscopy> routine, which copies the |
426 | file specified in the first parameter to the file specified in the | |
427 | second parameter, preserving OS-specific attributes and file | |
428 | structure. For Unix systems, this is equivalent to the simple | |
f1442e8b SB |
429 | C<copy> routine, which doesn't preserve OS-specific attributes. For |
430 | VMS systems, this calls the C<rmscopy> routine (see below). For OS/2 | |
431 | systems, this calls the C<syscopy> XSUB directly. For Win32 systems, | |
432 | this calls C<Win32::CopyFile>. | |
9b957b78 | 433 | |
338de517 | 434 | B<Special behaviour if C<syscopy> is defined (OS/2, VMS and Win32)>: |
9b957b78 | 435 | |
71be2cbc | 436 | If both arguments to C<copy> are not file handles, |
437 | then C<copy> will perform a "system copy" of | |
9b957b78 | 438 | the input file to a new output file, in order to preserve file |
439 | attributes, indexed file structure, I<etc.> The buffer size | |
71be2cbc | 440 | parameter is ignored. If either argument to C<copy> is a |
441 | handle to an opened file, then data is copied using Perl | |
9b957b78 | 442 | operators, and no effort is made to preserve file attributes |
443 | or record structure. | |
444 | ||
55497cff | 445 | The system copy routine may also be called directly under VMS and OS/2 |
446 | as C<File::Copy::syscopy> (or under VMS as C<File::Copy::rmscopy>, which | |
71be2cbc | 447 | is the routine that does the actual work for syscopy). |
9b957b78 | 448 | |
449 | =item rmscopy($from,$to[,$date_flag]) | |
0cdecedb | 450 | X<rmscopy> |
9b957b78 | 451 | |
71be2cbc | 452 | The first and second arguments may be strings, typeglobs, typeglob |
453 | references, or objects inheriting from IO::Handle; | |
454 | they are used in all cases to obtain the | |
9b957b78 | 455 | I<filespec> of the input and output files, respectively. The |
456 | name and type of the input file are used as defaults for the | |
457 | output file, if necessary. | |
458 | ||
459 | A new version of the output file is always created, which | |
460 | inherits the structure and RMS attributes of the input file, | |
461 | except for owner and protections (and possibly timestamps; | |
462 | see below). All data from the input file is copied to the | |
463 | output file; if either of the first two parameters to C<rmscopy> | |
464 | is a file handle, its position is unchanged. (Note that this | |
465 | means a file handle pointing to the output file will be | |
466 | associated with an old version of that file after C<rmscopy> | |
467 | returns, not the newly created version.) | |
468 | ||
469 | The third parameter is an integer flag, which tells C<rmscopy> | |
1fef88e7 JM |
470 | how to handle timestamps. If it is E<lt> 0, none of the input file's |
471 | timestamps are propagated to the output file. If it is E<gt> 0, then | |
9b957b78 | 472 | it is interpreted as a bitmask: if bit 0 (the LSB) is set, then |
473 | timestamps other than the revision date are propagated; if bit 1 | |
474 | is set, the revision date is propagated. If the third parameter | |
475 | to C<rmscopy> is 0, then it behaves much like the DCL COPY command: | |
476 | if the name or type of the output file was explicitly specified, | |
477 | then no timestamps are propagated, but if they were taken implicitly | |
478 | from the input filespec, then all timestamps other than the | |
479 | revision date are propagated. If this parameter is not supplied, | |
480 | it defaults to 0. | |
481 | ||
482 | Like C<copy>, C<rmscopy> returns 1 on success. If an error occurs, | |
483 | it sets C<$!>, deletes the output file, and returns 0. | |
484 | ||
55497cff | 485 | =back |
486 | ||
f716a1dd | 487 | =head1 RETURN |
488 | ||
441496b2 CB |
489 | All functions return 1 on success, 0 on failure. |
490 | $! will be set if an error was encountered. | |
f716a1dd | 491 | |
492 | =head1 AUTHOR | |
493 | ||
441496b2 | 494 | File::Copy was written by Aaron Sherman I<E<lt>ajs@ajs.comE<gt>> in 1995, |
bd3fa61c | 495 | and updated by Charles Bailey I<E<lt>bailey@newman.upenn.eduE<gt>> in 1996. |
f716a1dd | 496 | |
497 | =cut | |
441496b2 | 498 |