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diff --git a/coreutils-5.3.0-bin/man/cat1p/mkfifo.1p.txt b/coreutils-5.3.0-bin/man/cat1p/mkfifo.1p.txt new file mode 100644 index 0000000..42442b1 --- /dev/null +++ b/coreutils-5.3.0-bin/man/cat1p/mkfifo.1p.txt @@ -0,0 +1,175 @@ +mkfifo(P) mkfifo(P) + + + + + +NAME + mkfifo - make FIFO special files + +SYNOPSIS + mkfifo [-m mode] file... + +DESCRIPTION + The mkfifo utility shall create the FIFO special files + specified by the operands, in the order specified. + + For each file operand, the mkfifo utility shall perform + actions equivalent to the mkfifo() function defined in + the System Interfaces volume of IEEE Std 1003.1-2001, + called with the following arguments: + + The file operand is used as the path argument. + + The value of the bitwise-inclusive OR of S_IRUSR, + S_IWUSR, S_IRGRP, S_IWGRP, S_IROTH, and S_IWOTH is used + as the mode argument. (If the -m option is specified, + the value of the mkfifo() mode argument is unspecified, + but the FIFO shall at no time have permissions less + restrictive than the -m mode option-argument.) + +OPTIONS + The mkfifo utility shall conform to the Base Definitions + volume of IEEE Std 1003.1-2001, Section 12.2, Utility + Syntax Guidelines. + + The following option shall be supported: + + -m mode + Set the file permission bits of the newly-created + FIFO to the specified mode value. The mode + option-argument shall be the same as the mode op- + erand defined for the chmod utility. In the sym- + bolic_mode strings, the op characters '+' and '-' + shall be interpreted relative to an assumed ini- + tial mode of a= rw. + + +OPERANDS + The following operand shall be supported: + + file A pathname of the FIFO special file to be cre- + ated. + + +STDIN + Not used. + +INPUT FILES + None. + +ENVIRONMENT VARIABLES + The following environment variables shall affect the + execution of mkfifo: + + LANG Provide a default value for the internationaliza- + tion variables that are unset or null. (See the + Base Definitions volume of IEEE Std 1003.1-2001, + Section 8.2, Internationalization Variables for + the precedence of internationalization variables + used to determine the values of locale + categories.) + + LC_ALL If set to a non-empty string value, override the + values of all the other internationalization + variables. + + LC_CTYPE + Determine the locale for the interpretation of + sequences of bytes of text data as characters + (for example, single-byte as opposed to multi- + byte characters in arguments). + + LC_MESSAGES + Determine the locale that should be used to + affect the format and contents of diagnostic mes- + sages written to standard error. + + NLSPATH + Determine the location of message catalogs for + the processing of LC_MESSAGES . + + +ASYNCHRONOUS EVENTS + Default. + +STDOUT + Not used. + +STDERR + The standard error shall be used only for diagnostic + messages. + +OUTPUT FILES + None. + +EXTENDED DESCRIPTION + None. + +EXIT STATUS + The following exit values shall be returned: + + 0 All the specified FIFO special files were created + successfully. + + >0 An error occurred. + + +CONSEQUENCES OF ERRORS + Default. + + The following sections are informative. + +APPLICATION USAGE + None. + +EXAMPLES + None. + +RATIONALE + This utility was added to permit shell applications to + create FIFO special files. + + The -m option was added to control the file mode, for + consistency with the similar functionality provided by + the mkdir utility. + + Early proposals included a -p option similar to the + mkdir -p option that created intermediate directories + leading up to the FIFO specified by the final component. + This was removed because it is not commonly needed and + is not common practice with similar utilities. + + The functionality of mkfifo is described substantially + through a reference to the mkfifo() function in the Sys- + tem Interfaces volume of IEEE Std 1003.1-2001. For exam- + ple, by default, the mode of the FIFO file is affected + by the file mode creation mask in accordance with the + specified behavior of the mkfifo() function. In this + way, there is less duplication of effort required for + describing details of the file creation. + +FUTURE DIRECTIONS + None. + +SEE ALSO + chmod() , umask() , the System Interfaces volume of + IEEE Std 1003.1-2001, mkfifo() + +COPYRIGHT + Portions of this text are reprinted and reproduced in + electronic form from IEEE Std 1003.1, 2003 Edition, + Standard for Information Technology -- Portable Operat- + ing System Interface (POSIX), The Open Group Base Speci- + fications Issue 6, Copyright (C) 2001-2003 by the Insti- + tute of Electrical and Electronics Engineers, Inc and + The Open Group. In the event of any discrepancy between + this version and the original IEEE and The Open Group + Standard, the original IEEE and The Open Group Standard + is the referee document. The original Standard can be + obtained online at http://www.open- + group.org/unix/online.html . + + + +POSIX 2003 mkfifo(P) |