Copies or appends the contents of one file to another file
Supported Platforms: Windows and Mac OS
(vl-file-copy source-file destination-file [append])
Type: String
Name of file to be copied. If you do not specify a full path name, vl-file-copy looks in the AutoCAD default drawing directory.
Type: String
Name of the destination file. If you do not specify a path name, vl-file-copy writes to the AutoCAD default drawing directory.
Type: T or nil
If specified and not nil, source-file is appended to destination-file (that is, copied to the end of the destination file).
Type: Integer or nil
A numeric value, if the copy was successful; otherwise nil.
Some typical reasons for returning nil are
Copy or append the contents of one file to another file. The vl-file-copy function will not overwrite an existing file; it will only append to it.
Copy autoexec.bat to newauto.bat:
(vl-file-copy "c:/autoexec.bat" "c:/newauto.bat") 1417
Copy test.bat to newauto.bat:
(vl-file-copy "c:/test.bat" "c:/newauto.bat") nil
The copy fails because newauto.bat already exists, and the append argument was not specified.
Repeat the previous command, but specify append:
(vl-file-copy "c:/test.bat" "c:/newauto.bat" T) 185
The copy is successful because T was specified for the append argument.
Copy oldstart.sh to newstart.sh:
(vl-file-copy "/oldstart.sh" "/newstart.sh") 1417
Copy start.sh to newstart.sh:
(vl-file-copy "/start.sh" "/newstart.sh") nil
The copy fails because newstart.sh already exists, and the append argument was not specified.
Repeat the previous command, but specify append:
(vl-file-copy "/start.sh" "/newstart.sh" T) 185
The copy is successful because T was specified for the append argument.