$ls -l jeffrin ls: cannot access jeffrin: No such file or directory $mkfifo jeffrin $ls -l jeffrin prw-r–r– 1 jeffrin jeffrin 0 Oct 12 00:02 jeffrin $ $ls -d > jeffrin “another terminal” $cat < jeffrin . $ A “FIFO” is a special file type that permits independent processes to communicate. One process opens the …