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  • Hi Glenn, I am still getting the illegal floating point error" I realize that the number "5" that I adding or summing is not 5, rather is 5.2 so the formula is going to be : set varx = echo " 5.2 + $xbiz" | bc -l Do you have another idea how to solve this?? Commented Apr 22, 2014 at 15:54
  • What is the content of the xbiz variable? Commented Apr 22, 2014 at 16:26
  • Hi Glenn: the content of the xbiz variable is coming from a input text boxes, generally are numbers like 2.4, 4.15,etc. my problems is when the text box is empty or "0" there I get the error illegal float point value!! Commented Apr 22, 2014 at 17:59
  • Well, in those cases, you have to change the value. Commented Apr 22, 2014 at 18:00
  • How do I change the values Gelnn? I am so new in shell script, how do I get rid of the illegal float point error, thanks for your valuable help! Commented Apr 22, 2014 at 18:02