The
command to send a
broken pipe signal to a
process. Also known as
kill -15, using the
signal number instead of the
signal name. Usually the
system sends this signal
as necessary, when the process tries to
write to a pipe with no readers.
If you read it literally, it could mean "kill the process by beating it to death with a lead pipe". This could turn out like the game Clue: "Who killed init? I think it was root in /usr/bin with kill -PIPE!"