Linux Array & Associative Array

標籤：linux shell array

Ordinary Array:

Assign1: arrayName=(value1 value2 ...)

Assign2: arrayName[index]=value

Length: ${#arrayName[*]} or ${#arrayName[@]} 

Indexes: ${!arrayName[*]} or ${#arrayName[@]}

Example:

#!/bin/bashgroup1=(rio amos)group2[0]=billgroup2[1]=frankgroup2[2]=bruceecho group1 has ${#group1[*]} person[s]echo they are ${group1[*]}echo group2 has ${#group2[@]} person[s]echo they are ${group2[@]}

Associative Array：

Define: declare -A arrayName

Assign1: arrayName=([index1]=value1 [index2]=value2 ...)

Assign2: arrayName[index]=value

Length: ${#arrayName[*]} or ${#arrayName[@]}

Indexes: ${!arrayName[*]} or ${#arrayName[@]}

Example:

#!/bin/bashdeclare -A team1declare -A team2team1=([rio]=1981 [amos]=1990)team2[frank]=1983team2[bill]=1984team2[bruce]=1990echo team1 has ${#team1[*]} person[s]echo they are ${!team1[*]}echo team2 has ${#team2[@]} person[s]echo they are ${!team2[@]}

本文出自 “Frank” 部落格，請務必保留此出處http://zengfanhong.blog.51cto.com/8894077/1569554

Linux Array & Associative Array