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Just sayin'....

paste -sd+ myFile | sed 's/+\([+-]\)/\1/g;s/^+//'|bc


---------- Post updated at 10:01 AM ---------- Previous update was at 10:00 AM ----------


I did try it with Solaris' Bourne (/bin/sh) -...

not all ksh-s provide floating point arithmetics

This doesn't work with Solaris' Bourne shell (/bin/sh)

Most likely all other operations could be made easier with awk as well, but if you insist....

#!/bin/ksh
#set -x

sum=0
while read num
do
num=$(echo $num|sed 's/+//g')
sum=$(echo "$sum...

instead of using while/read and grep/cut, why don't use awk and do it ALL of it natively with one utility...