#!/bin/bash # Declare a dictionary. declare -A Host Host=( [node1]='10.1.1.11' [node2]='10.1.1.12' [node3]='10.1.1.13' [node4]='10.1.1.14' ) # Traversing dictionary values.1 for node_ip in ${Host[@]}; do echo "One IP of these hosts is ${node_ip} ."; done declare -A Test Test=( [jsnu]='admin.jsnu.cn' [jsjz]='admin.jsjz.cn' ) echo ${Test[jsjz]} echo ${Test[jsnu]}