https://man7.org/linux/man-pages/man3/mkfifo.3p.html
mkfifo(3p) - Linux manual page
linux manualmkfifo3p
https://cygwin.com/pipermail/cygwin/1999-November/031401.html
One problem with "mkfifo"
oneproblemmkfifo
https://man7.org/linux/man-pages/man1/mkfifo.1.html
mkfifo(1) - Linux manual page
linux manualmkfifo1