Arithmetic issues...

[jping45]

I am attempting to find the percentage:
Here's what I have and I can't seem to get it to work...

tpp=$(lspv $disk | grep "TOTAL PPs" | awk '{print $3}')
fpp=$(lspv $disk | grep "FREE PPs" | awk '{print $3}')

pau=$((( $fpp / $tpp ) * 100 ))
I can't seem to get the correct answer...
any suggestions would be appreciated..

 

[CaKiwi]

I'm sure there is an easier way but this should work.

pau=`awk -v TPP=$tpp -v FPP=$fpp "BEGIN{print 100*FPP/TPP;exit}`

CaKiwi

 

[aigles]

Hi jping45,

Numbers are integers not reals, so use * before /
For example :
5 / 50 * 100 = 0 * 100 = 0
100 * 5 / 50 = 500 /50 = 10

Use :
pau=$(( 100 * $fpp / $tpp ))
or
(( pau = 100 * fpp / tpp ))

Jean Pierre.

 

[toolkit]

You should be able to find percentage in one awk call:
[tt]
#!/bin/sh
disk=<your disk name>
lspv $disk | awk '
/TOTAL PPs/ { tpp = $3 }
/FREE PPs/ { fpp = $3 }
END {
printf &quot;%.2f\n&quot;, ( fpp * 100.0 / tpp )
}'
[/tt]
Cheers, Neil

 

[jping45]

Much Thanks to all ;-)