Shell implementation Associative array

<title>Shell implementation Associative array</title> Shell implementation Associative array

Write the input and output of the array with the shell; there is a file, the first list of host names, the second column IP address, how to enter
Host name return IP address, shell write implementation;

Read  do    eval ${host}=${IP}  done so that you can directly echo the ${hostname}. 

A file only 1 columns of data, how to use the shell to find the sums of the 1 columns of data;

Read  do    sum=$ ((sum + N));  Done echo $sum

DATE:2015-01-17 10:18:23

Author:sunx

CREATED:2015-01-17 Sat 10:20

Emacs 24.4.2 (ORG mode 8.2.10)

Validate

Shell implementation Associative array