Also, eq (perlop) is used for comparison, not for assignment. I think you want: 
$type = "S";

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Side note... this: 

$PP=$PP+1;

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can also be written more concisely as: 

$PP++;

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In reply to Re: Setting Conditional Variable Based on Partial Match by toolic
in thread Setting Conditional Variable Based on Partial Match by Osiris1975

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