copying file contents across directories

i came to know that to copy the file contents across directories we ve to specify the path and if we r at d destination directory then after giving the source path a space followed by '.' we ll be able to copy.....but what if there r more than one empty file?? in which file ll it get copied??

Instead of '.', give the new filename. File contents will be copied but with different filename.

eg:

$ cp ../sample/abc.txt def.txt

hey thanks...its working!!