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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 DEBIAN

hdftopal

HDFTOPAL(1)						      General Commands Manual						       HDFTOPAL(1)

NAME

       hdftopal, paltohdf - convert between a palette in an HDF file and a raw palett e in a non-HDF file

SYNOPSIS

       hdftopal hdf-pallette-file raw-pallette-file
       paltohdf raw-pallette-file hdf-pallette-file

DESCRIPTION

       hdftopal  converts  a  palette  in  an HDF file to a raw palette in an non-HDF file. The raw palette will have 768 bytes with the first 256
       bytes representing red intensity values, the second 256 bytes representing green intensity values, and the  third  256  bytes  representing
       blue intensity values.

       paltohdf  performs the converse conversion, from raw palette data to the HDF palette format. The raw palette data must have 768 bytes orga-
       nized in the following order: first, 256 contiguous red intensity values, then 256 contiguous green intensity values, then  256	contiguous
       blue intensity values. The palette in the HDF file will have the RGB values pixel-interlaced, as follows:

       red-value green-value blue-value red-value green-value blue-value...

       This is the standard HDF format for 8-bit palettes.

       If  an HDF palette format file is specified that doesn't exist, it is created before the converted data is stored. If an HDF palette format
       file is specified that already exists, the converted data is appended to the file.

SEE ALSO

       hdf(5)

								 November 6, 1999						       HDFTOPAL(1)
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