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open my $fh_in , '<', 'test1.txt' or die "Can not open file test1.txt: + $!"; ... } close $fh_out; close $fh_in;
MGI:1918918 381629 0610007C +21Rik 5 syntenic 51374 + C2orf28 2p23.3 B MGI:1918917 71667 0610007L +01Rik 5 syntenic F 55069 + C7orf42 7q11.21 C MGI:1923501 76251 0610007P +08Rik 13 syntenic B3 375748 + C9orf102 9q22.32 M MGI:1915571 58520 0610007P +14Rik 12 syntenic 11161 + C14orf1 14q24.3 B