log_file log_date log_time ocn year
ocn.log.141121-194935   141121   194935        1
ocn.log.141122-080856   141122    80856        5
ocn.log.141122-183641   141122   183641        9
ocn.log.141123-055043   141123    55043       13
ocn.log.141123-164726   141123   164726       17
ocn.log.141124-033119   141124    33119       21
ocn.log.141124-141927   141124   141927       25
ocn.log.141125-004614   141125     4614       29
ocn.log.141125-151432   141125   151432       33
ocn.log.141126-014456   141126    14456       37
ocn.log.141126-141956   141126   141956       41
ocn.log.141127-003602   141127     3602       45
ocn.log.141128-035627   141128    35627       49
ocn.log.141129-110639   141129   110639       49
ocn.log.141130-005751   141130     5751       49
ocn.log.141130-072916   141130    72916       51
ocn.log.141130-092956   141130    92956       51
ocn.log.141130-094016   141130    94016       51
ocn.log.141130-095939   141130    95939       51
ocn.log.141130-213022   141130   213022       55
ocn.log.141201-091231   141201    91231       59
ocn.log.141202-021836   141202    21836       63
ocn.log.141202-140135   141202   140135       67
ocn.log.141203-003837   141203     3837       71
ocn.log.141203-133015   141203   133015       75
ocn.log.141203-205308   141203   205308       75
ocn.log.141204-092412   141204    92412       79
ocn.log.141205-010502   141205    10502       84
ocn.log.141205-192419   141205   192419       88
ocn.log.141206-080729   141206    80729       92
ocn.log.141206-215931   141206   215931       96
ocn.log.141207-085505   141207    85505      101