remove - delete a name and possibly the file it refers to
SYNOPSIS
#include <stdio.h>
int remove(const char * pathname );
DESCRIPTION
remove deletes a name from the filesystem.
It calls
unlink for files, and
rmdir for directories.
If the removed name was the
last link to a file and no processes have the file open the file is
deleted and the space it was using is made available for reuse.
If the name was the last link to a file but any processes still have
the file open the file will remain in existence until the last file
descriptor referring to it is closed.
If the name referred to a symbolic link the link is removed.
If the name referred to a socket, fifo or device the name for it is
removed but processes which have the object open may continue to use
it.
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and
errno is set appropriately.