Celsius

#!/usr/bin/awk -f
# Fahrenheit = Fahrenheit = 32 + Celsius X 1.8
# Celsius = (Fahrenheit - 32) / 1.8
BEGIN{
 print "Begin line with F or C, to convert to Celsius, or Fahrenheit."
}
END{

}

/^[Ff].* /{
 #print "Fahrenheit to Celsius"
 print (($2 - 32) / 1.8 ) " C"

}

/^[Cc].* /{
 #print "Celsius to Fahrenheit"
 print ( 32 + ( $2  * 1.8 )) " F"
}
# 4 / 5 = 1.8