Shell Programming and Scripting

Code:

#!/bin/ksh

a=1.72
b=1.71

if [ "$(echo "if (${a} > ${b}) 1" | bc)" -eq 1 ] ; then
   echo ">"
else
   echo "<"
fi;

Here is a snippet from IBM.com's AIX Documentation Section under the "bc Command".

You can find it here --> pSeries and AIX Information Center
Thanks,
Matt

---------- Post updated at 05:00 PM ---------- Previous update was at 04:59 PM ----------

Hey vgersh99, thanks for the reply!!

Cool... I'll give that a try and post back.

Thanks Again,
Matt

---------- Post updated at 05:05 PM ---------- Previous update was at 05:00 PM ----------

Hey vgersh99, I haven't gotten a chance to try that yet. I have to deal with another issue here at work, and it's almost closing time!!!

So I'll post back first thing tomorrow with my results. Thanks!


Thanks Again,
Matt

---------- Post updated 12-13-12 at 10:26 AM ---------- Previous update was 12-12-12 at 05:05 PM ----------

Hey vgersh99 thanks, that did it!

I'm using this in a function that I will call in my script in order to do a Relational Expression (i.e. >, <, <=, >=, ==) on
floating point numbers

Code:

#!/bin/bash

### This function will check a conditional expression of floating point numbers, which will return either TRUE or FALSE (i.e. 0 or 1)
function float_condition()
{
    local cond=0
    opt="$*"

    if [ $# -gt 0 ]
     then
        cond=$(echo "if ($opt) 1" | bc 2>/dev/null)

        if [[ -z "$cond" ]]
         then
            cond=0
        fi

        if [[ "$cond" != 0  &&  "$cond" != 1 ]]
         then
                cond=0
        fi
    fi

    local stat=$((cond == 0))
    return $stat
}

Thanks guys for all your help!!


Thanks Again,
Matt