Shell Programming and Scripting

#!/bin/ksh

file='tmpid'
typeset -i i=0

while read input
do
  IFS=:; set -A arr ${input}
  while (( i < ${#arr[@]} ))
  do
    echo "arr[$i]=${arr[$i]}"
    i=$(( $ + 1 ))
  done
  ((i=0))
done < "${file}"

#!/bin/ksh

a='one:two::four'

IFS=':' ;set -A arr ${a}

len=${#arr[@]}

typeset -i i=0
while (( i < len ))
do
   echo "arr[$i] ==> ${arr[$i]}"
   i=$(( $i + 1 ))
done