1mkfifo(1M) System Administration Commands mkfifo(1M)
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6 mkfifo - make FIFO special file
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9 /usr/bin/mkfifo [-m mode] path...
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12 ksh93
13 mkfifo [ options ] file...
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17 /usr/bin/mkfifo
18 The mkfifo utility creates the FIFO special files named by its argument
19 list. The arguments are taken sequentially, in the order specified; and
20 each FIFO special file is either created completely or, in the case of
21 an error or signal, not created at all.
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24 If errors are encountered in creating one of the special files, mkfifo
25 writes a diagnostic message to the standard error and continues with
26 the remaining arguments, if any.
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29 The mkfifo utility calls the library routine mkfifo(3C), with the path
30 argument is passed as the path argument from the command line, and
31 mode is set to the equivalent of a=rw, modified by the current value of
32 the file mode creation mask umask(1).
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34 ksh93
35 The mkfifo utility creates one or more FIFOs. By default, the mode of
36 the created FIFO is a=rw minus the bits set in umask(1).
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39 /usr/bin/ksh93
40 The following option is supported for /usr/bin/mkfifo:
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42 -m mode Set the file permission bits of the newly-created FIFO to
43 the specified mode value. The mode option-argument will be
44 the same as the mode operand defined for the chmod(1) com‐
45 mand. In <symbolicmode> strings, the op characters + and −
46 will be interpreted relative to an assumed initial mode of
47 a=rw.
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50 ksh93
51 The following option is supported for ksh93:
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53 -m mode Set the mode of the created FIFO to mode. The mode
54 --mode=mode option-argument is a symbolic or octal mode as in
55 chmod(1). Relative modes assume an initial mode of a=rw.
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59 The following operand is supported:
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61 file A path name of the FIFO special file to be created.
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65 See largefile(5) for the description of the behavior of mkfifo when
66 encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
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69 See environ(5) for descriptions of the following environment variables
70 that affect the execution of mkfifo: LANG, LC_ALL, LC_CTYPE, LC_MES‐
71 SAGES, and NLSPATH.
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74 The following exit values are returned:
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76 0 All the specified FIFO special files were created successfully.
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79 >0 An error occurred.
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83 See attributes(5) for descriptions of the following attributes:
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88 ┌─────────────────────────────┬─────────────────────────────┐
89 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
90 ├─────────────────────────────┼─────────────────────────────┤
91 │Availability │SUNWesu │
92 ├─────────────────────────────┼─────────────────────────────┤
93 │Interface Stability │Standard │
94 └─────────────────────────────┴─────────────────────────────┘
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97 chmod(1), umask(1), mkfifo(3C), attributes(5), environ(5), large‐
98 file(5), standards(5)
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102SunOS 5.11 11 Aug 2009 mkfifo(1M)