Parse and count lines Post: 302272219

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What is the correct syntax to have the awk parse the next line as well? The next in bold is where I think it should go, but I wanted to ask the experts since I am a beginner. The file to be parsed is attached as well. Thank you :). awk 'NR==2 {split($2,a,"");b=substr(a,1,length(a-1));print...

LEARN ABOUT LINUX

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)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to count lines - ignoring blank lines and commented lines

Discussion started by: kthatch

2. Shell Programming and Scripting

parse of lines with different delimiters

Discussion started by: nathasha

3. Shell Programming and Scripting

Extra/parse lines from a file between unque lines through the file

Discussion started by: jouuu

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Parse and delete lines efficiently

Discussion started by: TDUser