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Full Discussion: search a value in array
Top Forums UNIX for Dummies Questions & Answers search a value in array Post 302502543 by pals70423 on Tuesday 8th of March 2011 09:08:58 AM
Old 03-08-2011
I have created an array like

set -A list_arr red blue green orange

and now i have the parameter for the program

check_list= $1

if the user run the program with red as the input parameter it should set a variable

found_in=check_$check_list( i.e found_in=check_orange)

and if the user enter anything not in the array like black the script need to echo saying that it is not a valid input
 

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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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