12.4 mkfifo: Make FIFOs (named pipes)
mkfifo creates FIFOs (also called named pipes) with the
specified names. Synopsis:
mkfifo [option] name...
A FIFO is a special file type that permits independent processes
to communicate. One process opens the FIFO file for writing, and
another for reading, after which data can flow as with the usual
anonymous pipe in shells or elsewhere.
The program accepts the following option. Also see Common options.
- ‘-m mode’
- Set the mode of created FIFOs to mode, which is symbolic as in
chmod and uses ‘a=rw’ (read and write allowed for everyone)
for the point of departure. mode should specify only file
permission bits. See File permissions.
- Without a specified context, adjust the SELinux security context according
to the system default type for destination files, similarly to the
The long form of this option with a specific context specified,
will set the context for newly created files only.
With a specified context, if both SELinux and SMACK are disabled, a warning is
An exit status of zero indicates success,
and a nonzero value indicates failure.