log_file log_date log_time ocn year
ocn.log.150223-210914   150223   210914        1
ocn.log.150224-012551   150224    12551        2
ocn.log.150224-045401   150224    45401        3
ocn.log.150224-085333   150224    85333        4
ocn.log.150224-145105   150224   145105        5
ocn.log.150225-005504   150225     5504        6
ocn.log.150225-042358   150225    42358        7
ocn.log.150225-084514   150225    84514        8
ocn.log.150226-003835   150226     3835        9
ocn.log.150226-040953   150226    40953       10
ocn.log.150226-123441   150226   123441       11
ocn.log.150227-021329   150227    21329       12
ocn.log.150227-055228   150227    55228       13
ocn.log.150228-054416   150228    54416       14
ocn.log.150228-102818   150228   102818       15
ocn.log.150301-011426   150301    11426       16
ocn.log.150301-052512   150301    52512       17
ocn.log.150301-105017   150301   105017       18
ocn.log.150301-152246   150301   152246       19
ocn.log.150301-192800   150301   192800       20
ocn.log.150301-225544   150301   225544       21
ocn.log.150302-024143   150302    24143       22
ocn.log.150302-060758   150302    60758       23
ocn.log.150302-110423   150302   110423       24
ocn.log.150302-174507   150302   174507       25
ocn.log.150302-211409   150302   211409       26