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Nice. Well if you have any luck, let me know. I'm pretty stuck.

Unfortunately, this isn't an option. For the assignment I must implement it so that the order does not matter.



Haven't quite figured it out yet. It current works on input that comes after...

Thanks. That takes care of some of it. The other problem is the input order. The getops is fantastic for taking in one argument, but only if they are after a switch.

That's a really good idea, the logic definitely solves part of my problem, but for some reason I'm getting errors.


zak 153 % mymath.sh 7 7 -a
7
mymath.sh: line 52: ((: 0 += 1 : attempted...

Believe me, I would love to do just that; however, like I stated above, the program must be able to accept multiple options (so if the user typed mymath -a -d -m -s 7 7, the script would output the...

Yep, just figured that out. Not the part I'm having trouble with though. New code will do mymath -a 7 7 but not mymath 7 -d 7

fixed all of the functions, now use
case "$opt" in
a)...

Thanks for the help, but that's not allowed.

Has to be in the form

mymath.sh [-options] [-args]

Valid examples:

mymath.sh -a 12 39
mymath.sh -m -d 44 17
mymath.sh 35 -a -d 88 -m

I'm having some trouble implementing a basic calculator using command line options. The script is supposed to take (multiple) arguments -a,-d,-m,-s for addition, multiplication, division, and...