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Full Discussion: Compare float value with single decimal
Top Forums Shell Programming and Scripting Compare float value with single decimal Post 302503531 by danmero on Thursday 10th of March 2011 10:11:05 PM
Old 03-10-2011
Quote:
Originally Posted by alvin0618
No value display, may i know why?
Yes Smilie
Quote:
Originally Posted by alvin0618
Code:
#!/bin/bash
declare $(awk '$1>=5.1 && $1<=10{r1++}$1>=10 && $1<=15{r2++}END{print "range1_count="r1,"range2_count="r2}' /export/home/alvin/test.txt)
echo $range1_count
echo $range2_count

 

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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)
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