| unlink {base} | R Documentation | 
unlink deletes the file(s) or directories specified by x.
unlink(x)
x | 
a character vector with the names of the file(s) or directories to be deleted. Wildcards (normally `*' and `?') are allowed. | 
0 for success, 1 for failure.
Not deleting a non-existent file is not a failure.
tempfile for file creation.