e2l@stulejka:~/autom8/losowane_po_lewej$ tail -n5 ml.txt
11483.,12.02.2019,5,9,11,16,18,22,23,26,29,37,40,47,48,50,51,56,58,59,70,79
11484.,13.02.2019,4,12,13,14,21,23,32,36,38,47,50,54,56,57,58,59,69,74,75,79
11485.,13.02.2019,1,5,10,14,15,16,20,28,29,32,34,37,38,40,52,54,57,72,75,76
11486.,14.02.2019,5,8,9,15,16,22,24,25,28,32,36,39,49,51,55,59,60,65,72,74
11487.,14.02.2019,3,5,7,8,17,21,22,25,31,32,35,42,50,52,61,63,64,67,72,74
e2l@stulejka:~/autom8/losowane_po_lewej$ ./a.sh
e2l@stulejka:~/autom8/losowane_po_lewej$ cat gotowe.txt
     1  5672        21  5652        41  5682        61  5676
     2  5660        22  5822        42  5916        62  5800
     3  5582        23  5792        43  5744        63  5628
     4  5786        24  5628        44  5682        64  5726
     5  5750        25  5746        45  5694        65  5902
     6  5590        26  5572        46  5766        66  5812
     7  5654        27  5770        47  5884        67  5930
     8  5560        28  5804        48  5976        68  5854
     9  5668        29  5816        49  5640        69  5738
    10  5684        30  5628        50  5450        70  5726
    11  5754        31  5924        51  5630        71  5756
    12  5612        32  5694        52  5728        72  5790
    13  5830        33  5930        53  5760        73  5786
    14  5864        34  5762        54  5550        74  5914
    15  5898        35  5816        55  5500        75  5768
    16  5708        36  5830        56  5692        76  5738
    17  5662        37  5834        57  5750        77  5848
    18  5680        38  5790        58  5642        78  5732
    19  5822        39  5636        59  5790        79  5678
    20  5944        40  5886        60  5964        80  5526
e2l@stulejka:~/autom8/losowane_po_lewej$