Question

I have a file in perl that has a constructor

#!/usr/bin/perl

package ConfigFileReader;

sub new {
    my ($mode, $configFileName) = @ARGV;

    print $mode;
    print $configFileName;
}

I know that passing a parameter to a perl script is like

helloworld.pl arg1 arg2 argN

Now, how can I call the constructor new{} from the command line? BTW I am calling the perl file in a shell script.

#!/bin/bash

x=`helloworld.pl arg1 arg2 argN`;

echo $x;

Answer 1

#!/bin/bash

ARG1=...
ARG2=...

X=`perl -e "use ConfigFileReader; new ConfigFileReader($ARG1,$ARG2);"`

echo $X