Have you considered the "replacement-option" of substr? Have a look at the following example, which replaces "fox": 
my $text = "the quick brown fox likes jumping";
my $pos1 = index ($text, "fox");
my $length = 3;

substr( $text, $pos1, $length, "aligator");

print $text,"\n";

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HTH, Rata

In reply to Re: Replace text at given index by Ratazong
in thread Replace text at given index by danj35

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