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mkfifo
MKFIFO(1) FreeBSD 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'') com-
pliant.
HISTORY
The mkfifo command appeared in 4.4BSD.
FreeBSD 6.2 January 5, 1994 FreeBSD 6.2
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