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Is there any difference between unlink() and remove() on a file?

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http://stackoverflow.com – In C++ on Linux I see that on the man page for remove() it states in part: remove deletes a name from the filesystem. It calls unlink for files, and rmdir for directories. So I'm wondering if there is any difference between calling remove() versus unlink() on a file? Perhaps the only difference is that unlink() is slightly faster in that it does not have to handle directories? (HowTos)