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How to take set of numbers?

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# 1  
Old 05-06-2011
Error How to take set of numbers?
I have to take a list of numbers from the keyboard and not by passing arguments. How will I read a set of numbers in such a way that I can use any number I wish to operate upon. Is there any specific command to do so. As said before I dont want to pass the numbers as arguments from command line.
Example:take a list of numbers from the keyboard and add them.
# 2  
Old 05-06-2011
Use read
bash code:
  1. while true; do
  2. read -p "Enter a number (leave blank to finish) : " N
  3.     [ -z "$N" ] && break
  4.     ((Total+=N))
  5. done
  6. echo "Sum of entered numbers : $Total"
  7. exit 0
NOTE: There isn't any check for a valid number
# 3  
Old 05-06-2011
Thanks for the reply. It works! :-D
# 4  
Old 05-06-2011
Code:
#!/bin/sh
echo -n "enter list of numbers (seperated by space) -"
read nums
echo $nums | awk '{for(i=1;i<=NF;i++){tot+=$i}} END {print tot}'

invocation
Code:
sh readnumber.sh
enter list of numbers (seperated by space) -2 4 6 8
o/p
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