You should switch from backticks to a pipe open: 
open SCRIPT, "<code-to-execute> |" or die "script failed: $!";

[download]
As long as your script output is line-based, you can use 
<SCRIPT>

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to read lines as they are printed (as long as you set $| to 1 inside the script you are calling).

In reply to Re: Calling another script from Perl/Tk by Illuminatus
in thread Calling another script from Perl/Tk by ravishi

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