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open (WORK, "<$work_file") or die "Couldn't open $work_file."; # Open +the working file
use strict; use warnings; ... my $work_file = 'E:\triggers\1_MERGE_3326\tests\20131209_180245424_R01 +.hl7'; open (WORK, "<$work_file") or die "Couldn't open $work_file : $!";