log_file log_date log_time ocn year
ocn.log.141223-142649   141223   142649        1
ocn.log.141223-233359   141223   233359        9
ocn.log.141224-205855   141224   205855       17
ocn.log.141225-054952   141225    54952       25
ocn.log.141225-151338   141225   151338       33
ocn.log.141226-030438   141226    30438       41
ocn.log.141227-204522   141227   204522       49
ocn.log.141228-054303   141228    54303       57
ocn.log.141228-185230   141228   185230       65
ocn.log.141229-035216   141229    35216       73
ocn.log.141229-140006   141229   140006       81
ocn.log.141230-022425   141230    22425       89
ocn.log.141231-124912   141231   124912       97
ocn.log.141231-215134   141231   215134      105
ocn.log.150101-065426   150101    65426      113
ocn.log.150101-164246   150101   164246      121
ocn.log.150103-132826   150103   132826      129
ocn.log.150104-000914   150104      914      137
ocn.log.150104-090240   150104    90240      145
ocn.log.150104-181414   150104   181414      153
ocn.log.150105-032516   150105    32516      161
ocn.log.150105-191109   150105   191109      169
ocn.log.150106-104634   150106   104634      177
ocn.log.150108-204606   150108   204606      185