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Full Discussion: Automatic counter script
Top Forums UNIX for Dummies Questions & Answers Automatic counter script Post 302634743 by verse123 on Thursday 3rd of May 2012 06:29:03 PM
Old 05-03-2012
What I am trying to do is just add up a column by segments, and a segment will be defined when the addition of several lines add up to a certain value -- 10 in this case.

so if the input is:

Quote:
Col1
2
1
3
1
2
1
4
5
2
1
1
then the output should be

Quote:
col1 col2
2
1
3
1
2
1 10
4
5
1 10
2
1

does this help?
 

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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)
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