Calling method from AWK command

I have varibales which represent order numer

I want to parse it and call to method handleOrder

I tried it but not working

 #!/bin/ksh
ORDER_LIST=100,200,300
`echo $line |awk -F"," '{for(i=0;i<=NF;i++) HandleOrder printf $i}'`

HandleOrder 
(
 echo "My Order is $1"
}

Expected Result:

My Order is 100
My Order is 200
My Order is 300

Actual Result

Syntax Error

You need to define the HandleOrder function inside the awk script so that it can be called in the awk script. Also, you want to start your loop at 1 so that you do not print $0, the variable that contains the whole line. Something like:

#!/bin/ksh
ORDER_LIST=100,200,300
echo $ORDER_LIST | awk -F"," '
  function HandleOrder(order) { print "My Order is ", order } 
  {for(i=1;i<=NF;i++) { HandleOrder($i) }}
'

If you wish to have HandleOrder as a shell script instead of an awk function, then use something like:

#!/bin/ksh
ORDER_LIST=100,200,300
echo $ORDER_LIST | awk -F"," '
  {for(i=1;i<=NF;i++) { system("HandleOrder.ksh " $i) }}
'

and create a shell script named HandleOrder.ksh containing:

#!/bin/ksh
echo "My Order is $1"

Make sure that HandleOrder.ksh is set executable and is in the $PATH.