Re: How do I replace a substring (if exists) with a different substring in a string?

You can use a s/// regex like this:

my $str = "I have a dream";
my $find = "have";
my $replace = "had";
$find = quotemeta $find; # escape regex metachars if present

$str =~ s/$find/$replace/g;

print $str;
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The quotemeta lets you find strings that contain regex meta characters and the /g at the end of the s/// does all occurances.

cheers

tachyon

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