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Full Discussion: Help with AWK script please
Top Forums Shell Programming and Scripting Help with AWK script please Post 302598358 by mirni on Tuesday 14th of February 2012 07:41:05 AM
Old 02-14-2012
Quote:
This code works on the above file:
It may run without errors, but it doesn't do anything useful -- it doesn't print anything. The FS is set to "\t" but there are no tabs in the sample input you posted.
Quote:
I get some syntax errors.
Like what? Can you please post the errors you are getting? What system are you on? Which awk are you using? What is your desired output?

Quote:
Any suggestions?
You should take the time to post the exact input and desired output, using CODE tags, and be more specific about your problems, to increase your chances of getting help. Just posting a bunch of code is not enough.
 

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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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