2, history
[ec2-user@ip-10-0-3-22 ~]$ history | grep log | grep rm
398 2014-11-10 01:16:01 rm python_etl_today_error.log
426 2014-11-10 01:16:01 rm sqlldr_log_folder
765 2014-11-10 01:16:01 rm python_etl_dev.log
1004 2014-11-10 01:25:28 history | grep log | grep rm
1006 2014-11-10 01:33:03 history | grep log | grep rm