Cfrtjryk

so in my code below I'm like trying to get my code to read the input that the user enters in my code as seen below

#./MyProject -a -b OR -b -a

However I keep getting a Syntax error and its not passing the tests given by the program: The following tests are: having inputs that aren't a&b (i.e c-z), having no inputs at all, having too little arguments, having too many arguments,

#Use just prints out the format like this : ./MyProject -a -b



 - if ( ! getopts ":ab" arg) then  

echo $use  

fi 



 while [getopts ":ab" arg2] 

do

         case $arg2 in



        t) if (($1 != "t" && $1 != "o")); then

         echo $use 

     fi   

 esac   

done  

}

The following example should work for you.

#!/bin/bash



usage() {

    echo "Usage: $0 -a -b"

    exit

}



while getopts ":a:b:" arg; do

    case $arg in

        a)

            a=${OPTARG}

            (($a == "t" || $a == "o")) || usage

            ;;

        b)

            b=${OPTARG}

            ;;

        *)

            usage

            ;;

    esac

done



echo $a

echo $b