MKFIFO(1)		  BSD General Commands Manual		     MKFIFO(1)

NAME
     mkfifo — make fifos

SYNOPSIS
     mkfifo [-m mode] fifo_name ...

DESCRIPTION
     The mkfifo utility creates the fifos requested, in the order specified.

     The options are as follows:

     -m      Set the file permission bits of the created fifos to the speci‐
	     fied mode, ignoring the umask(2) of the calling process.  The
	     mode argument takes any format that can be specified to the
	     chmod(1) command.	If a symbolic mode is specified, the op sym‐
	     bols ‘+’ (plus) and ‘-’ (hyphen) are interpreted relative to an
	     assumed initial mode of “a=rw” (read and write permissions for
	     all).

     If the -m option is not specified, fifos are created with mode 0666 modi‐
     fied by the umask(2) of the calling process.  The mkfifo utility requires
     write permission in the parent directory.

EXIT STATUS
     The mkfifo utility exits 0 on success, and >0 if an error occurs.

SEE ALSO
     mkdir(1), rm(1), mkfifo(2), mknod(2), mknod(8)

STANDARDS
     The mkfifo utility is expected to be IEEE Std 1003.2 (“POSIX.2”) compli‐
     ant.

HISTORY
     The mkfifo command appeared in 4.4BSD.

BSD				January 5, 1994 			   BSD