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Full Discussion: Create Dynamic if condition
Top Forums Shell Programming and Scripting Create Dynamic if condition Post 302943641 by wahi80 on Monday 11th of May 2015 11:45:45 AM
Old 05-11-2015
Create Dynamic if condition
Create Dynamic If condition

Hi,
I have a file color.txt which has data as shown below
Code:
Red
Blue
Green
Yellow
White
Pink
Black

Based on a variable I execute a tail command as shown below
Code:
tail -${LEFT_OVR} color.txt

LEFT_OVR can be any number less than count of number of lines in a file

so if LEFT_OVR=2, then output would be
Code:
Pink
Black

Based on output of tail command I need to build a dynamic If condition, which will look something like this

Code:
if [ "$color" = "Pink" ] || [ "$color" = "Black" ]

I'm planning to do something like this
Code:
tail -${LEFT_OVR} color.txt > tail_out
one_line=`awk 'BEGIN { ORS = " " } { print }' tail_out`

COND=""
for c in $one_line
do
COND="[ color = $c ] $COND"
done

Next I would check for occurrence of ] [ and replace with ] || [

Any ideas if there is something easier to achieve similar result?
Last edited by rbatte1; 05-11-2015 at 12:55 PM.. Reason: CODE tags for output
 

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LEARN ABOUT DEBIAN

desktop_palette

desktop_palette(3alleg4)					  Allegro manual					  desktop_palette(3alleg4)

NAME

       desktop_palette - The palette used by the Atari ST low resolution desktop. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       extern PALETTE desktop_palette;

DESCRIPTION

       The  palette  used by the Atari ST low resolution desktop. I'm not quite sure why this is still here, except that the grabber and test pro-
       grams use it. It is probably the only Atari legacy code left in Allegro, and it would be a shame to remove it :-)

       The contents of this palette are 16 colors repeated 16 times. Color entry zero is equal to color entry 16, which is equal  to  color  entry
       24, etc.

	  Index      Color	 RGB values
	    0	  White 	 63  63  63
	    1	  Red		 63   0   0
	    2	  Green 	  0  63   0
	    3	  Yellow	 63  63   0
	    4	  Blue		  0   0  63
	    5	  Pink		 63   0  63
	    6	  Cyan		  0  63  63
	    7	  Grey		 16  16  16
	    8	  Light grey	 31  31  31
	    9	  Light red	 63  31  31
	   10	  Light green	 31  63  31
	   11	  Light yellow	 63  63  31
	   12	  Light blue	 31  31  63
	   13	  Light pink	 63  31  63
	   14	  Light cyan	 31  63  63
	   15	  Black 	  0   0   0

SEE ALSO

       default_palette(3alleg4), black_palette(3alleg4)

Allegro 							   version 4.4.2					  desktop_palette(3alleg4)
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