For each regular file listed on the command line,
fwipe attempts to overwrite the file five times times with 0s and 1s. If
fwipe attempts to delete the file.
For each file,
fwipe prints a response to stdout consisting of the filename, followed by a
0-byte, a status byte, a human-readable message and a newline. The
status byte is Z for temporary failure, D for permanent failure,
and K for success.
fwipe is simply a shell script, directing the output of