I'd try a split and a grep: 
my $list = "foo:bar:baz";
my $wanted = "bar";

if (grep {$_ eq $wanted) split ":", $list)
{
  print "found!\n";
}

[download]
--Dave

In reply to Re: Trying to determine if path exists in environmental variable by dpuu
in thread Trying to determine if path exists in environmental variable by slojuggler

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