diff options
| -rw-r--r-- | lispref/files.texi | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lispref/files.texi b/lispref/files.texi index 18a98a406c4..a98b1663822 100644 --- a/lispref/files.texi +++ b/lispref/files.texi @@ -1364,7 +1364,7 @@ with @code{add-name-to-file} and then deleting @var{filename} has the same effect as renaming, aside from momentary intermediate states. @end deffn -@deffn Command copy-file oldname newname &optional ok-if-exists time +@deffn Command copy-file oldname newname &optional ok-if-exists time mustbenew This command copies the file @var{oldname} to @var{newname}. An error is signaled if @var{oldname} does not exist. If @var{newname} names a directory, it copies @var{oldname} into that directory, @@ -1379,6 +1379,10 @@ This function copies the file modes, too. In an interactive call, a prefix argument specifies a non-@code{nil} value for @var{time}. + +The argument @var{mustbenew} controls whether an existing file can be +overwritten. It works like the similarly-named argument of +@code{write-file} (@pref{Writing to Files}). @end deffn @deffn Command make-symbolic-link filename newname &optional ok-if-exists |