在Perl来砸变量返回两个值 [英] return two values from perl to bash variables

问题描述

我打电话一个perl脚本来计算bash脚本的大小和变化。有没有办法在bash这两个值返回分离变量中，比如$ SIZE和$ VAR。只有懂得回报一个值。

I am calling a perl script to calculate size and variation in bash script. Is there a way to return those two values to separated variables in bash, say $SIZE and $VAR. Only know how to return one value.

推荐答案

，您可以从Perl脚本打印变量，分离，比方说，空间，然后从庆典阅读：

Instead of returning (which is mainly used for an error/success code from the script), you can print your variables from the perl script, separated by, say, space, and then read them from bash:

#!/usr/bin/perl
$size=1;
$var=2;
print "$size $var\n";

和

#!/bin/bash
read SIZE VAR <<<$(my_perl_script)
echo size: $SIZE var: $VAR

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