Shell Script-relational array

  1 ################################## #######################################     2 # file name:  muscian.sh  3 # author: dty  4 # mail: [email protected ]  5 # created time: wed 05 aug 2015 04:41:14 pm  Cst  6 #########################################################################  7  #!/bin/bash  8 declare -a beatles  9 beatles= ( [singer]= John [bassist]=paul [drummer]=ringo [guitarist]=george)  10 for muscian in   singer bassist drummer guitarist 11 do 12      echo  "the ${muscian} is ${beatles[$muscian]}"//Note calls must be added with the $ sign in [] ....  13 done~ 

1 ######################################################################### 2 # File Name:instruments.sh 3 # Author: Dty 4 # Mail: [email protected] 5 # Created time:wed 04:50:45 PM CST 6 ################################## ####################################### 7 #!/bin/bash 8 declare-a Beatles 9 beatles= ([Singer]=john [Bassist]=paul] [Dr  Ummer]=ringo [Guitarist]=george] instrument in ${!beatles[@]}//Direct reverse call is equivalent to printing singer bassist drummer guitarist 11 Do-echo "the ${instrument} is ${beatles[$instrument]}" done~

All two of these programs are expressions of relational arrays.

The first reference, the second backward reference ${!array[@]}, the relational array that uses the value in conjunction with the index must first

Declare-a

To declare

To practice practiced hand a simple, Lee is Chinsese people, Kobe are US people. Dirk is German people

  1 #########################################################################       2 # file name: dirk.sh     3 # author : dty      4 # mail: [email protected]       5 # created time: wed 05 aug 2015 05:02:53  pm cst      6 ################################################## #######################      7 #!/bin/bash       8 declare -a people      9 people= ( [chinese]=lee  [us]=kobe [german]=dirk )      10 for ship in  chinese us german     11 do     12      echo the ${people[$ship]} is   $ship  people     13 done     [[email protected] mnt]# ./dirk.sh     the  lee is chinese people     the kobe is us  People     the dirk is german people

Shell Script-relational array