(coreutils.info)mkfifo invocation

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12.4 `mkfifo': Make FIFOs (named pipes)
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`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 Note: Common
options.

`-m MODE'
`--mode=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.  Note: File permissions.

`-Z CONTEXT'
`--context=CONTEXT'
     Set the default SELinux security context to be used for created
     FIFOs.


   An exit status of zero indicates success, and a nonzero value
indicates failure.