"The command can also accept arguments via STDIN which would avoid this security problem, but I haven't been able to figure out how to do this with Capture::Tiny. If I have the password as a variable in my script, how can I pass this into STDIN for external command using Capture::Tiny."

In the following code, I've used cat as an example external command. This can read from STDIN. It outputs whatever it reads in to STDOUT: handy for this test; hopefully, your external command isn't echoing passwords. 

#!/usr/bin/env perl

use strict;
use warnings;
use autodie qw{:all};

use Capture::Tiny qw{capture};

my ($stdout, $stderr) = capture \&run_external_command;

printf "STDOUT: %sSTDERR: %s\n", $stdout, $stderr;

sub run_external_command {
    my $external_command = 'cat';
    open my $cmd_pipe, '|-', $external_command;
    print $cmd_pipe "password\n";
}

[download]

Output:

STDOUT: password
STDERR:

[download]

— Ken

In reply to Re: How to pass data as STDIN to Capture::Tiny by kcott
in thread How to pass data as STDIN to Capture::Tiny by Anonymous Monk

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