Hi
I am trying to add variables(float values) in a unix script but am getting an error

value=`expr $a + $b + $c`

look at the arithmetic evaluation section in the manpage for the shell you are using...
(shell calculations are limited to integer values)

http://www.unix.com/shell-programmin...t-numbers.html

read this post. This works for me

var=$(echo "$a +$b +$c" | bc)

ant:/home/vbe $ echo "$A+$B+$C"
3+4+9.5
ant:/home/vbe $ echo "$A+$B+$C"|bc
16.5

Thanks a lot....

total=`echo $numone + $numtwo | bc`

worked fine.

There is also one more prob......The variable sometimes contains "" attached to it also eg "23.45".
How to handle this in the addition?It is throwing an error"syntax error on line 1 stdin"

ant:/home/vbe $ echo $(expr "23.45")+"$A+$B+$C"|bc
39.95