expr

Help me out debug following shell scripts I hav just started learning bash but I need bug free code for my assignments hope you ppl will help me promptly :-) snipped Ans echo “Enter the date of birth” read a while [ $a - ne o] do r = ‘ expr $a %10’ s = ‘ expr $s +...

:) is there any direct method to do floating point arithmetics in shell programming ? using expr or something. pls help