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author | Indrajith K L | 2022-12-03 17:00:20 +0530 |
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committer | Indrajith K L | 2022-12-03 17:00:20 +0530 |
commit | f5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch) | |
tree | 2764fc62da58f2ba8da7ed341643fc359873142f /coreutils-5.3.0-bin/man/cat1p/tsort.1p.txt | |
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Diffstat (limited to 'coreutils-5.3.0-bin/man/cat1p/tsort.1p.txt')
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diff --git a/coreutils-5.3.0-bin/man/cat1p/tsort.1p.txt b/coreutils-5.3.0-bin/man/cat1p/tsort.1p.txt new file mode 100644 index 0000000..ed3eee2 --- /dev/null +++ b/coreutils-5.3.0-bin/man/cat1p/tsort.1p.txt @@ -0,0 +1,158 @@ +tsort(P) tsort(P) + + + + + +NAME + tsort - topological sort + +SYNOPSIS + tsort [file] + +DESCRIPTION + The tsort utility shall write to standard output a + totally ordered list of items consistent with a partial + ordering of items contained in the input. + + The application shall ensure that the input consists of + pairs of items (non-empty strings) separated by + <blank>s. Pairs of different items indicate ordering. + Pairs of identical items indicate presence, but not + ordering. + +OPTIONS + None. + +OPERANDS + The following operand shall be supported: + + file A pathname of a text file to order. If no file + operand is given, the standard input shall be + used. + + +STDIN + The standard input shall be a text file that is used if + no file operand is given. + +INPUT FILES + The input file named by the file operand is a text file. + +ENVIRONMENT VARIABLES + The following environment variables shall affect the + execution of tsort: + + 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 cate- + gories.) + + 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 and input files). + + 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 + The standard output shall be a text file consisting of + the order list produced from the partially ordered + input. + +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 Successful completion. + + >0 An error occurred. + + +CONSEQUENCES OF ERRORS + Default. + + The following sections are informative. + +APPLICATION USAGE + The LC_COLLATE variable need not affect the actions of + tsort. The output ordering is not lexicographic, but + depends on the pairs of items given as input. + +EXAMPLES + The command: + + + tsort <<EOF + a b c c d e + g g + f g e f + h h + EOF + + produces the output: + + + a + b + c + d + e + f + g + h + +RATIONALE + None. + +FUTURE DIRECTIONS + None. + +SEE ALSO + None. + +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 tsort(P) |