Shell Programming and Scripting

echo "please enter your name"
read i
echo "please enter your password"
read j
userName=$i"/"$j

      grep -n $userName $HOME/testing/pass > $HOME/testing/temp

valid=`cut -f2 -d':' $HOME/testing/temp`

if [ $valid = $userName ]
then

echo "success"
else 
echo "failure"
fi

a="a"
n=0
while a <>q
read a   #a can be next, quit or previous
case a=n
  n=n+1
  do question n
case a=q
  display score
  exit
case a=p
  n=n-1
  do question n
endcase  
enddo

#!/usr/bin/env ksh

# present the question, four choices then read and compare the answer with 
# the last parm (correct choice). increases the proper counter based on the selection. 
function ask
{
        typeset ans=""

        echo "$1"
        echo "a) $2"
        echo "b) $3"
        echo "c) $4"
        echo "d) $5"

        while true
        do
                printf "Enter your answer: "
                read ans
                case $ans in
                        a|b|c|d)
                                if [[ $ans == $6 ]]
                                then
                                        correct_tally=$(( correct_tally + 1 ))
                                else
                                        incorrect_tally=$(( incorrect_tally + 1 ))
                                fi
                                q=$(( $q + 1 ))
                                return
                                ;;

                        A|B|C|D)
                                echo "your caps-lock seems to be on; please use lowercase letters"
                                ;;

                        *)      echo "invalid response, please try again"
                                ;;
                esac
        done

}

q=0
nquestions=5
while (( $q < $nquestions ))
do
        case $q in
                0)      ask "London is in which country?" "United States" "China" "Canada" "England" "d";;
                1)      ask "The sky is what colour?" blue green grey orange a;;
                2)      ask "Insects have how many legs?" 3 6 9 12 b;;
                3)      ask "Which is the only fruit with the seeds on the outside?" strawberry bananna orange lime a;;
                4)      ask "Which month has just 28 days?" January March February May c;;
        esac
done

echo "your score: $correct_tally correct; $incorrect_tally wrong"

exit

3.) What is the capital of The United States of America?
  a.) Texas
  b) Florida
  c) Washington D.C
  d) Chicago 
 
Answer (Use N for next question, P for previous): C

$ cat testit
#!/bin/bash
 
QUESTIONS=(
   "What is the capital of The United States of America"
   "The sky is what colour"
)
 
OPTIONS=(
        "Texas|Florida|Washington D.C|Chicago "
        "Blue|Green|Grey|Orange"
)
 
CORRECT=( "C" "A" )
 
 
echo ${QUESTIONS[0]}?
echo ${CORRECT[1]}
 
$ ./testit
What is the capital of The United States of America?
A

QNUM=0
while true
do
   ask $QNUM
   case $? in
       0)  let QNUM=QNUM+1 ;;  # Next
       1)  let QNUM=QNUM-1 ;;  # Prev
       3)  break ;; # Quit/Done
   esac
   # If before first or after last then wrap
   [ $QNUM -ge ${#QUESTIONS[@]} ] && QNUM=0
   [ $QNUM -lt 0 ] && let QNUM=${#QUESTIONS[@]}-1
done
QNUM=0
SCORE=0
while [ $QNUM -lt ${#QUESTIONS[@]} ]
do
    [ "${CORRECT[$QNUM]}" = "${ANSWER[$QNUM]}" ] && let SCORE=SCORE+1
    let QNUM=QNUM+1
done

timer()
{
   WAIT=$1
   # PRE - Save position, hide cursor, move to top left
   # POST - Erase rest of line, restore position, view cursor
   PRE="$( tput sc ; tput civis ; tput cup 0 0)"
   POST="$( tput el ; tput rc ; tput cnorm)"
   while [ -d /proc/$WAIT ]
   do
      if [ $SECONDS -gt 20 ]
      then
         kill -14 $WAIT
         break;
      fi
      echo -e "${PRE}Time to go: $(( 20 - $SECONDS ))${POST}\c"
      sleep 2
   done
}
timeout()
{
   echo "Times up - sorry"
}
 
trap "timeout ; exit" 14
clear
echo -e "\n\nEnter your name: \c"
timer $$ &
read name
echo "Your name is $name"