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Re: How to call a script interactively from perl

by BrowserUk (Pope)
on Oct 08, 2012 at 22:07 UTC ( #997887=note: print w/replies, xml ) Need Help??

in reply to How to call a script interactively from perl

If the script is a purely command line program that takes its inputs from stdin, you can avoid IPC::open3 by feeding the required interactions to via a pipe.

Say the script requires two lines of input, like this one:

#! perl -slw use strict; chomp( my $interact1 = <STDIN> ); chomp( my $interact2 = <STDIN> ); print "Got: $interact1 $interact2";

Then you can feed it the required inputs and retrieve its output like this:

C:\test>perl -E"$p = open I, '-|', '( echo fred & echo jim ) | interac'; say for <I>;" Got: fred jim

This often will not work for programs that expect passwords.

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