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open my $fh2, '<', '/tmp/mlist.txt' or die "unable to open file '$file +' for reading : $!"; open my $fh9, '>', '/tmp/listk.txt' or die "unable to open file '$file +' for reading : $!"; ... } close $fh2; close $fh9;
open my $bpfh1, '<', \$forbpjoutput or die $!; while (<$bpfh1>) { ... } }