how do you get 10 inputs into an array ?

very simple task, but hard concept to grasp.

im supposed to grab 10 inputs / integers from the user. what i did was this:


echo "Please enter 10 scores"
read -a scores

... but when i try to echo out the array scores, it only shows the first input. i don't think other 9 inputs are recorded. what am i doing wrong?

echo $scores


...is the cmd i am using to display them. but it only shows the first input. can someone help plz?

-ivalice

try changing your read to:

read score1 score2 score3 score4 score5 score6 score7 score8 score9 score10

echo $score1
echo $score2
echo $score3
echo $score4
echo $score5
echo $score6
echo $score7
echo $score8
echo $score9
echo $score10

nevermind. i got it. i think it was jim or someone that posted this website:

http://www.tldp.org/LDP/abs/html/internal.html#EX33

it proves to be very useful.

now if someone can tell me how i can sort these numbers in descending order?
the instructor told me to use a concept called 'bubble sort', but i don't know how. i'm thinking if i can someone get those numbers into a file, and sort them with option (-d), and then bring it back into the array.

i also need help calculating the sum and the average!

yeah thanks.
i would of done that, but i re-read the question, and it states "at least" . which is a problem.since it has to be at least 10 inputs, but unlimited in terms of maximum.

thank you all the same. its hard to get a reply quickly here

(especially when you are on a deadline!)

-ivalice

okay, for the average of the array, i am trying to use 'bc'. the built-in calculator. so far i have this:

i=0
sum=0
while [ $count -ne 0 ]
do
sum=`expr ${scores[i]} + $sum`
i=`expr $i + 1`
count=`expr $count - 1`
done

echo the sum is equal to $sum


... this will get me the sum of the numbers inputted. how can i use 'bc' so that i can find the average ? i'm not very experienced with piping, which is what i think i must do. i had something like this line:

echo `bc $sum/$count`

but it won't calculate when i try to run the script. there has to be another way.

thanks for any help!

-ivalice

ah! i just found it online!

echo "$sum/$tempcount" |bc


yes!

found it here:
http://www.shelldorado.com/newslett...2002-3-Aug.html

i saw another page that showed you how to do it by setting an alias, but that seemed like a little extra legwork . especially since i've been up all night doing dam scripting@!

-iliva