Files in the BNU spool directories
that have filenames beginning with the characters C.
are work files.
Work files are created in a spool directory when
work (file transfers or remote command executions) has been
queued for a remote computer.
The names of work files have the format:
where sys is the name of the remote computer, n is the ASCII character representing the grade (priority) of the work, and xxxx is the four digit job sequence number assigned by uucp. Work files contain the following information: