associative array example, requires bash 4

arrays.sh

#!/usr/bin/env bash
# good ref: http://www.artificialworlds.net/blog/2012/10/17/bash-associative-array-examples/
# requires bash 4 for associative arrays

declare -A MYMAP=(
  [foo]=bar
  [baz]=quux
)
KEYS=(${!MYMAP[@]})        # Make a normal array containing all the keys in the associative array
for (( I=0; $I < ${#MYMAP[@]}; I+=1 )); do
  KEY=${KEYS[$I]}
  echo $KEY --- ${MYMAP[$KEY]};
done