shell-whiz-toolkit/shell_scripts/lessons/real_numbers.sh
2014-07-05 18:22:01 -04:00

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#! /bin/bash
a=0
b=0
number_of_args=$#
#
# First see the sufficient cmd args
#
if [ $# -lt 2 ] ; then
echo -e "Opps! I need atleast 2 command line args\n"
echo -e "Syntax: $0: number1 number2 ... numberN\n"
echo -e "Example:$0 5 4\n\t$0 56 66 34"
exit 1
fi
#
# now calculate the average of numbers given on command line as cmd args
#
a=$1
b=$2
c=`echo $a + $b | bc`
echo "$a + $b = $c"