FIFO in an UNIX OS

Question

What is FIFO in an UNIX OS?

Answer 1

FIFO is or else termed as 'named pipes'. FIFO (abbreviated as first-in-first-out) is a special file which is stated to be data transient. Once data is read from named pipe, it can’t be read again.

As well data can be read only in the order written. It is utilized in inter process communication where a process writes to one end of the pipe (that is, producer) and the other reads from another end (that is, consumer).