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Full Discussion: Calculation returns no value
Top Forums Shell Programming and Scripting Calculation returns no value Post 302540664 by Daniel Gate on Thursday 21st of July 2011 09:56:12 AM
Old 07-21-2011
Calculation returns no value
HTML Code:
#/bin/sh
.....
#convert memory to MB
let "mmsize_a= ($mmsize)/256"
let "mminuse_a= ($mminuse)/256"
let "mmfree_a= ($mmsize_a -$mminuse_a)"
let "mmfreepercent= (($mmfree_a)/($mmsize_a))*100"
#
#format output
echo "\n\n######################" >>$sndFile
echo "\n$sysName Total Memory usage" >>$sndFile
echo "\nTotal Memory size: $mmsize_a MB" >>$sndFile
echo "\nTotal Memory inuse: $mminuse_a MB" >>$sndFile
echo "\nTotal Memory Free: $mmfree_a MB" >>$sndFile
echo "\nTotal Memory Free %: $mmfreepercent %" >>$sndFile
The other calculation works fine, but "mmfreepercent= (($mmfree_a)/($mmsize_a))*100" returns null (no value at all) on the echo echo "\nTotal Memory Free %: $mmfreepercent %".

Please advise.
 

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LEARN ABOUT OPENSOLARIS

mlib_imagecolorrgb2ycc

mlib_ImageColorRGB2YCC(3MLIB)				    mediaLib Library Functions				     mlib_ImageColorRGB2YCC(3MLIB)

NAME

       mlib_ImageColorRGB2YCC - RGB to YCC color conversion

SYNOPSIS

       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status mlib_ImageColorRGB2YCC(mlib_image *dst, const mlib_image *src);

DESCRIPTION

       The mlib_ImageColorRGB2YCC() function performs a color space conversion from computer R'G'B' to ITU-R Rec.601 Y'CbCr.

       The source and destination images must be three-channel images.

       It uses the following equation:

	 |Y'|	|cmat[0] cmat[1] cmat[2]|   |R'|   |offset[0]|
	 |Cb| = |cmat[3] cmat[4] cmat[5]| * |G'| + |offset[1]|
	 |Cr|	|cmat[6] cmat[7] cmat[8]|   |B'|   |offset[2]|

       where

	 cmat[] = { 65.738/256, 129.057/256,  25.064/256,
		   -37.945/256, -74.494/256, 112.439/256,
		   112.439/256, -94.154/256, -18.285/256 };
	 offset[] = { 16, 128, 128 };
	 src[x][y] = { R', G', B' };
	 dst[x][y] = { Y', Cb, Cr };

PARAMETERS

       The function takes the following arguments:

       dst    Pointer to destination image.

       src    Pointer to source image.

RETURN VALUES

       The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mlib_ImageColorConvert2(3MLIB),	  mlib_ImageColorConvert2_Fp(3MLIB),	mlib_ImageColorRGB2YCC_Fp(3MLIB),   mlib_ImageColorXYZ2RGB(3MLIB),
       mlib_ImageColorXYZ2RGB_Fp(3MLIB), mlib_ImageColorYCC2RGB(3MLIB), mlib_ImageColorYCC2RGB_Fp(3MLIB), attributes(5)

SunOS 5.11							    2 Mar 2007					     mlib_ImageColorRGB2YCC(3MLIB)
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