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my $newfile = undef; eval { ... die "$@" if ($@ and !defined($newfile)); if (defined($newfile)) {print "$base has something new in it\n";} else {print "$base is just old stuff\n";}
@/=map{[/./g]}qw/.h_nJ Xapou cets krht ele_ r_ra/; map{y/X_/\n /;print}map{pop@$_}@/for@/