mkfifo(1M)

NAME

     mkfifo - make FIFO special file

SYNOPSIS

     /usr/bin/mkfifo [-m mode] path...

DESCRIPTION

     The mkfifo utility creates the FIFO special files  named  by
     its  argument list. The arguments are taken sequentially, in
     the order specified; and each FIFO special  file  is  either
     created  completely  or,  in the case of an error or signal,
     not created at all.

     If errors are encountered in creating  one  of  the  special
     files,  mkfifo  writes  a diagnostic message to the standard
     error and continues with the remaining arguments, if any.

     The mkfifo utility calls  the  library  routine  mkfifo(3C),
     with  the  path argument is passed as the path argument from
     the command line, and  mode is  set  to  the  equivalent  of
     a=rw,  modified  by the current value of the file mode crea-
     tion mask umask(1).

OPTIONS

     The following option is supported:

     -m mode
           Sets the file permission  bits  of  the  newly-created
           FIFO  to  the  specified  mode value. The mode option-
           argument will be the same as the mode operand  defined
           for  the  chmod(1) command. In <symbolicmode> strings,
           the op characters + and - will be interpreted relative
           to an assumed initial mode of a=rw.

OPERANDS

     The following operand is supported:

     file  A path name of the FIFO special file to be created.

USAGE

     See largefile(5) for the  description  of  the  behavior  of
     mkfifo  when  encountering  files greater than or equal to 2
     Gbyte ( 2**31 bytes).

ENVIRONMENT VARIABLES

     See environ(5) for descriptions of the following environment
     variables that affect the execution of mkfifo: LANG, LC_ALL,
     LC_CTYPE, LC_MESSAGES, and NLSPATH.

EXIT STATUS

     The following exit values are returned:

     0     All the specified FIFO special files were created suc-
           cessfully.

     >0    An error occurred.

ATTRIBUTES

     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWesu                     |
    |_____________________________|_____________________________|
    | Interface Stability         | Standard                    |
    |_____________________________|_____________________________|

SEE ALSO

     mkfifo(3C), attributes(5), environ(5),  largefile(5),  stan-
     dards(5)