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#!/bin/bash
#For welcome screen you should install a tool called FIGLET
# You can install figlet by typing apt-get install figlet
#Figlet displays texts in a cool way
function rect_area
{
length=$1
breadth=$2
area=$(echo "$length * $breadth" | bc -l)
echo "The Area of Rectangle is $area cm "
areaInch=$(echo "$area" / 2.54 | bc -l)
echo "The Area of Rectangle in inches is $areaInch inches ";
}
figlet Area Of Rectangle
flag="Y"
while [ $flag == "Y" ]; do
echo Enter the length of Rectangle
read length
echo Enter the breadth of Rectangle
read breadth
numFormat=$(echo ^[-+]?[0-9]+.?[0-9]*$)
if ( [[ "$length" =~ $numFormat ]] ) && ( [[ "$breadth" =~ $numFormat ]] ) ;
then
rect_area $length $breadth
else
echo Invalid input
fi
echo "Do you want to re-calculate?[Y/N]"
read ans
if [ "$ans" == "Y" ];
then
continue
else
break
fi
done
figlet THANK YOU


     
 
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