for my $file ( @ARGV ) {
say "Find biblionumber in file $file";
- open(FD, $file) or say "Error: '$file' $!" and next;
+ my $fh;
+ open($fh, '<', $file) or say "Error: '$file' $!" and next;
- while ( <FD> ) {
+ while ( <$fh> ) {
my $biblionumber = $_;
$biblionumber =~ s/$1/\n/g if $biblionumber =~ m/(\r\n?|\n\r?)/;
chomp $biblionumber;