make a FIFO special file
mkfifo [ -m mode ] path
The mkfifo command makes a first-in first-out pipe named
by the pathname path. The new FIFO has the
permissions 666 (equivalent to a=rw). These permissions
are possibly altered by
The -m option specifies the creation mode for
the FIFO file. mode may be in absolute or
symbolic form; see
for more details.
mkfifo returns exit code 0 if all FIFO special
files were created successfully. Otherwise, it prints a diagnostic
and returns non-zero. An error code is stored in errno.
mkfifo is conformant with:
ISO/IEC DIS 99452:1992, Information technology Portable Operating System Interface (POSIX) Part 2: Shell and Utilities (IEEE Std 1003.21992);
X/Open CAE Specification, Commands and Utilities, Issue 4, 1992.
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003