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1. The problem statement, all variables and given/known data:
The problem? I hope I fill this out correctly. I have a program that runs like a cash register. It works and functions correctly. The question is how can I make it "Not" use decimal's and use whole numbers?


2. Relevant commands, code, scripts, algorithms:
The code:

12 clear
13 total=0
14 grandtotal=0
15 taxtotal=0
16 most=0
17 least=0
18 counter=0
19 echo "Enter a price:"
echo "Press Enter twice when you are done to see the total."

20 echo
21 echo -n "Price: $" ; read a
22 echo
23 most=$a
24 least=$a
25 total=$a
26 while test $a
27 do
28 echo -n "Please enter another price: $"
29 read a

30 echo
31 let counter=$counter+1
32 if [[ $a = "" ]]
33 then break
34 else
35 (( total += a))
36 if [[ $a -lt $least ]]
37 then least=$a
38 fi
39 if [[ $a -gt $most ]]

40 then most=$a
41 fi
42 fi
43 done
44 clear
45 echo -n "The total is: $"
46 echo $total
47 echo
48 if [ $total -gt 1000 ]
49 then tax=.03

50 else
51 tax=.06
52 fi
53 taxtotal="$tax*$total"
54 echo -n "The Tax is: $"
55 echo $taxtotal | bc
56 echo
57 echo -n "The Grand Total is: $"
58 grandtotal=$total+$taxtotal
59 echo $grandtotal | bc

50 echo
51 echo -n "The total number of items is: "
52 echo $counter
53 echo
54 echo -n "The most expensive item was: $"
55 echo $most
56 echo
57 echo -n "The lowest item was: $"
58 echo $least
59 echo


3. The attempts at a solution (include all code and scripts):

I have tried changing lines 49 and 51 to
49 then tax=$total=3*100
49 then tax="$total=3*100"
49 then tax="$total/3*100"

51 tax=$total=6*100
51 tax="$total=6*100"
51 tax="$total/6*100"

This has been a self taught class for the most part, the stuff we are asked to do is way beyond what INTRO is suppose to be about in a 9 week class.

4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
Baker College, Allen Park, Michigan, United States, Mahmoud Zali, Intro to Linux/Unix LUX205 (no link on campus)

Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).