| Allegro CL version 6.2 Object described on page has changed in 6.2 | |||||||||
Arguments: from-pathname to-pathname &key link overwrite preserve-symbolic-links preserve-time
Copies from-pathname to
to-pathname. If overwrite is
non-nil, to-pathname
will be overwritten if it exists. It is an error to specify an
existing file as the value of to-pathname if
overwrite has its default value nil.
The link argument only has meaning on UNIX platforms (symbolic and hard links are not supported on Windows) so it is ignored on Windows. On UNIX, it can have the following values:
t: if link is t, then perform the copy by creating a hard link if
the source and destination are on the same filesystem and by creating
a symbolic link if they are on different filesystems.
:hard: if link is
:hard, then perform the copy by creating a hard
link.
nil (the default): if
link is nil, then just
copy the file.
If preserve-symbolic-links is
true, copy a symbolic link by making a symbolic
link, otherwise copy normally--link is ignored if
from-pathname is a symbolic link. Because
symbolic links are not supported on Windows, this argument has meaning
on UNIX only. preserve-symbolic-links defaults
to nil.
If preserve-time is true,
then the time on to-pathname is set to be the
same as
from-pathname. preserve-time
defaults to t.
Both from-pathname and to-pathname can be streams, in which case all the keyword arguments are ignored. This allows for copying bytes from one stream to another.
In earlier releases, copy-file accepted an element-type keyword argument to specify the element type of the streams opened to the file to be copied and the new file. That argument was not in fact useful and has been removed. A warning is signaled if it is specified.
See Environment functions in os-interface.htm for information on file and directory information and manipulation functions in Allegro CL.
Copyright (c) 1998-2002, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 6.2. The object described on this page has been modified in the 6.2 release; see the Release Notes.
Created 2002.2.26.
| Allegro CL version 6.2 Object described on page has changed in 6.2 | |||||||||