I'm trying to write a basic script to calculate the radius and are are of a circle, PI=3.14, and the circumference is given. I am very very new to scripting, and I can't seem to figure this out.
RAD=echo "((CIRC/2*PI))" | bc-l
printf "Radius: %.2f" $RAD
AREA=echo "((PI*RAD**2))" | bc-l
printf "Area: %.2f" $AREA
Below script would do it :
#!/bin/bash pi=3.14 circ=5 rad=$( echo "scale=2;$circ / (2 * $pi)" | bc ) printf "Radius: %.2f\n" $rad area=$( echo "scale=2;$pi * $rad * $rad" | bc ) printf "Area: %.2f\n" $area