unlink file
unlink removes a directory entry.
Following the format, file specifies the entry to be removed, which can refer to a path name, a hard link, or a symbolic link. If file refers to a symbolic link, unlink removes the symbolic link but not any file or directory named by the contents of the symbolic link. If the entry that is unlinked is the last one associated with a file, then the file itself is deleted.
unlink is implemented as a shell built-in.
See Localization for more information.
mv, rm, rmdir