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ching(6) [netbsd man page]

CHING(6)							 BSD Games Manual							  CHING(6)

NAME
ching -- the book of changes and other cookies SYNOPSIS
ching [hexagram] DESCRIPTION
The I Ching or Book of Changes is an ancient Chinese oracle that has been in use for centuries as a source of wisdom and advice. The text of the oracle (as it is sometimes known) consists of sixty-four hexagrams, each symbolized by a particular arrangement of six straight (---) and broken (- -) lines. These lines have values ranging from six through nine, with the even values indicating the broken lines. Each hexagram consists of two major sections. The Judgement relates specifically to the matter at hand (e.g., ``It furthers one to have somewhere to go.'') while the Image describes the general attributes of the hexagram and how they apply to one's own life (``Thus the superior man makes himself strong and untiring.'') When any of the lines have the values six or nine, they are moving lines; for each there is an appended judgement which becomes significant. Furthermore, the moving lines are inherently unstable and change into their opposites; a second hexagram (and thus an additional judgement) is formed. Normally, one consults the oracle by fixing the desired question firmly in mind and then casting a set of changes (lines) using yarrow-stalks or tossed coins. The resulting hexagram will be the answer to the question. Using an algorithm suggested by S. C. Johnson, the UNIX oracle simply reads a question from the standard input (up to an EOF) and hashes the individual characters in combination with the time of day, process id and any other magic numbers which happen to be lying around the system. The resulting value is used as the seed of a random number generator which drives a simulated coin-toss divination. The answer is then piped through nroff(1) for formatting and will appear on the standard output. For those who wish to remain steadfast in the old traditions, the oracle will also accept the results of a personal divination using, for example, coins. To do this, cast the change and then type the resulting line values as an argument. The impatient modern may prefer to settle for Chinese cookies; try fortune(6). DIAGNOSTICS
The great prince issues commands, Founds states, vests families with fiefs. Inferior people should not be employed. SEE ALSO
It furthers one to see the great man. BUGS
Waiting in the mud Brings about the arrival of the enemy. If one is not extremely careful, Somebody may come up from behind and strike him. Misfortune. BSD
May 31, 1993 BSD

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UNIQ(1) 						    BSD General Commands Manual 						   UNIQ(1)

NAME
uniq -- report or filter out repeated lines in a file SYNOPSIS
uniq [-c | -d | -u] [-i] [-f num] [-s chars] [input_file [output_file]] DESCRIPTION
The uniq utility reads the specified input_file comparing adjacent lines, and writes a copy of each unique input line to the output_file. If input_file is a single dash ('-') or absent, the standard input is read. If output_file is absent, standard output is used for output. The second and succeeding copies of identical adjacent input lines are not written. Repeated lines in the input will not be detected if they are not adjacent, so it may be necessary to sort the files first. The following options are available: -c Precede each output line with the count of the number of times the line occurred in the input, followed by a single space. -d Only output lines that are repeated in the input. -f num Ignore the first num fields in each input line when doing comparisons. A field is a string of non-blank characters separated from adjacent fields by blanks. Field numbers are one based, i.e. the first field is field one. -s chars Ignore the first chars characters in each input line when doing comparisons. If specified in conjunction with the -f option, the first chars characters after the first num fields will be ignored. Character numbers are one based, i.e. the first character is character one. -u Only output lines that are not repeated in the input. -i Case insensitive comparison of lines. DIAGNOSTICS
The uniq utility exits 0 on success, and >0 if an error occurs. COMPATIBILITY
The historic +number and -number options have been deprecated but are still supported in this implementation. SEE ALSO
sort(1) STANDARDS
The uniq utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible. HISTORY
A uniq command appeared in Version 3 AT&T UNIX. BSD
June 6, 1993 BSD
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