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Shell Programming and Scripting
awk - function to return permutations of n items out of m
Post 303028488 by Neo on Wednesday 9th of January 2019 11:18:16 AM
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1. Shell Programming and Scripting
Hello Friends,
Is it possible to return an array from a user defined function in awk ?
example:
gawk '
BEGIN{}
{
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print catch_line
print catch_line
print catch_line
}
function my_function(i)
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...
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OS=HP-UX ksh
The following works, except I want to include the <start> and <end> in the output.
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--------------------------------
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-----------------------------
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------------------------------ (1 Reply)
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This is my first ever post... please help! :o
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Hello I have a very simple input file in which there are a list of numbers:
1
2
3
4
5
6
7
8
9
10
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Hi,
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hello,
I'm reading this thread, in which there is this code :awk '
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A;
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{ A }
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Hi All,
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#Body
function1()
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if
then
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LEARN ABOUT V7
ppmtopgm
ppmtopgm(1) General Commands Manual ppmtopgm(1) NAME
ppmtopgm - convert a portable pixmap into a portable graymap SYNOPSIS
ppmtopgm [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces a portable graymap as output. The output is a "black and white" rendering of the original image, as in a black and white photograph. The quantization formula used is .299 r + .587 g + .114 b. Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any ppm program can read pgm (and pbm ) files automatically. pgmtoppm is for colorizing a pgm file. Also, see ppmtorgb3 for a different way of converting color to gray. And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate the original colors, not necessarily a way that looks like a black and white photograph. QUOTE
Cold-hearted orb that rules the night Removes the colors from our sight Red is gray, and yellow white But we decide which is right And which is a quantization error. SEE ALSO
pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5) AUTHOR
Copyright (C) 1989 by Jef Poskanzer. 10 April 2000 ppmtopgm(1)