I think you want piped open: 

open my $fh, "| ./setup.sh" or die $!;

# print $fh "$_\n" for qw(a b c ...);

[download]

When you then say print $fh ..., the shell script gets the data on stdin, as it would from your current heredoc.

In reply to Re: Running shell script which needs runtime input through perl by Eliya
in thread Running shell script which needs runtime input through perl by snreddy_gopu

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