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Full Discussion: Grep multiple exact word
Top Forums UNIX for Beginners Questions & Answers Grep multiple exact word Post 303035827 by rbatte1 on Tuesday 4th of June 2019 08:26:07 AM
Old 06-04-2019
Why not use an expression like [^0]40[01345]" with appropriate wrapping to make them whole 'words' if needed. Can you share some of the data you want to work through and highlight in green the ones you want to match, with red for those you want to avoid?




Thanks, in advance,
Robin
 

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ppmdither(1)						      General Commands Manual						      ppmdither(1)

NAME
ppmdither - ordered dither for color images SYNOPSIS
ppmdither [-dim power] [-red shades] [-green shades] [-blue shades] [ppmfile] DESCRIPTION
Reads a portable pixmap as input, and applies dithering to it to reduce the number of colors used down to the specified number of shades for each primary. The default number of shades is red=5, green=9, blue=5, for a total of 225 colors. To convert the image to a binary rgb format suitable for color printers, use -red 2 -green 2 -blue 2. OPTIONS
-dim power The size of the dithering matrix. The dithering matrix is a square whose dimension is a power of 2. power is that power of 2. The default is 4, for a 16 by 16 matrix. -red shades The number of red shades to be used, including black; minimum of 2. -green shades The number of green shades to be used, including black; minimum of 2. -blue shades The number of blue shades to be used, including black; minimum of 2. SEE ALSO
pnmdepth(1), ppmquant(1), ppm(5) AUTHOR
Copyright (C) 1991 by Christos Zoulas. 14 July 1991 ppmdither(1)
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