First of all: use  use strict; and use warnings;. That will save a lot of time for you.

It will be good to put backslash before * in regexp if you want to match an asterisk. (see perldoc perlre about metacharacters)

Yes $type must be declared outside of condition block. But rather before if clause than after it. And seems you want to use = instead of eq when assigning a value to $type 


my $type = ($B1 =~ m/^\*/ or $B2 =~ m/^\*/) ? 'S' : 'I';

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

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