elliot@hadoop-desktop:~/shelltest$ r root
Aug 16 16:01:17 hadoop-desktop login[11906]: pam_unix(login:session): session opened for user hadoop by hadoop(uid=0)
Aug 16 16:01:56 hadoop-desktop login[11906]: pam_unix(login:session): session closed for user hadoop
Aug 16 16:06:35 hadoop-desktop su[14620]: Successful su for root by elliot
Aug 16 16:06:35 hadoop-desktop su[14620]: + /dev/pts/3 elliot:root
Aug 16 16:06:35 hadoop-desktop su[14620]: pam_unix(su:session): session opened for user root by (uid=1001)
Aug 16 16:09:01 hadoop-desktop CRON[14650]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 16:09:01 hadoop-desktop CRON[14650]: pam_unix(cron:session): session closed for user root
Aug 16 16:17:01 hadoop-desktop CRON[14707]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 16:17:02 hadoop-desktop CRON[14707]: pam_unix(cron:session): session closed for user root
Aug 16 16:18:38 hadoop-desktop su[14620]: pam_unix(su:session): session closed for user root
Aug 16 16:39:01 hadoop-desktop CRON[15035]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 16:39:01 hadoop-desktop CRON[15035]: pam_unix(cron:session): session closed for user root
Aug 16 17:09:01 hadoop-desktop CRON[15346]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 17:09:02 hadoop-desktop CRON[15346]: pam_unix(cron:session): session closed for user root
Aug 16 17:17:01 hadoop-desktop CRON[15500]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 17:17:01 hadoop-desktop CRON[15500]: pam_unix(cron:session): session closed for user root
Aug 16 17:39:01 hadoop-desktop CRON[15505]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 17:39:01 hadoop-desktop CRON[15505]: pam_unix(cron:session): session closed for user root
Aug 16 18:09:01 hadoop-desktop CRON[15654]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 18:09:03 hadoop-desktop CRON[15654]: pam_unix(cron:session): session closed for user root
Aug 16 18:17:02 hadoop-desktop CRON[15670]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 18:17:02 hadoop-desktop CRON[15670]: pam_unix(cron:session): session closed for user root
Aug 16 18:39:01 hadoop-desktop CRON[15704]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 18:39:02 hadoop-desktop CRON[15704]: pam_unix(cron:session): session closed for user root
Aug 16 19:09:01 hadoop-desktop CRON[15838]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 19:09:02 hadoop-desktop CRON[15838]: pam_unix(cron:session): session closed for user root
Aug 16 19:17:01 hadoop-desktop CRON[16006]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 19:17:01 hadoop-desktop CRON[16006]: pam_unix(cron:session): session closed for user root
Aug 16 19:39:01 hadoop-desktop CRON[16178]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 19:39:01 hadoop-desktop CRON[16178]: pam_unix(cron:session): session closed for user root
Aug 16 20:09:01 hadoop-desktop CRON[16692]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 20:09:01 hadoop-desktop CRON[16692]: pam_unix(cron:session): session closed for user root
Aug 16 20:17:01 hadoop-desktop CRON[16815]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 20:17:01 hadoop-desktop CRON[16815]: pam_unix(cron:session): session closed for user root
Aug 16 20:39:02 hadoop-desktop CRON[17116]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 20:39:02 hadoop-desktop CRON[17116]: pam_unix(cron:session): session closed for user root
Aug 16 21:09:01 hadoop-desktop CRON[17284]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 21:09:01 hadoop-desktop CRON[17284]: pam_unix(cron:session): session closed for user root
Aug 16 21:17:01 hadoop-desktop CRON[17320]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 21:17:01 hadoop-desktop CRON[17320]: pam_unix(cron:session): session closed for user root
Aug 16 21:39:01 hadoop-desktop CRON[17446]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 21:39:01 hadoop-desktop CRON[17446]: pam_unix(cron:session): session closed for user root
Aug 16 22:09:01 hadoop-desktop CRON[17705]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 22:09:01 hadoop-desktop CRON[17705]: pam_unix(cron:session): session closed for user root
Aug 16 22:17:01 hadoop-desktop CRON[17717]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 22:17:01 hadoop-desktop CRON[17717]: pam_unix(cron:session): session closed for user root
Aug 16 22:39:01 hadoop-desktop CRON[17722]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 22:39:01 hadoop-desktop CRON[17722]: pam_unix(cron:session): session closed for user root
Aug 16 23:09:01 hadoop-desktop CRON[17738]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 23:09:01 hadoop-desktop CRON[17738]: pam_unix(cron:session): session closed for user root
Aug 16 23:17:01 hadoop-desktop CRON[17751]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 23:17:01 hadoop-desktop CRON[17751]: pam_unix(cron:session): session closed for user root
Aug 16 23:39:01 hadoop-desktop CRON[17756]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 16 23:39:01 hadoop-desktop CRON[17756]: pam_unix(cron:session): session closed for user root
Aug 17 00:09:01 hadoop-desktop CRON[17771]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 17 00:09:01 hadoop-desktop CRON[17771]: pam_unix(cron:session): session closed for user root
Aug 17 00:17:01 hadoop-desktop CRON[17783]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 17 00:17:01 hadoop-desktop CRON[17783]: pam_unix(cron:session): session closed for user root
Aug 17 00:39:01 hadoop-desktop CRON[17789]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 17 00:39:01 hadoop-desktop CRON[17789]: pam_unix(cron:session): session closed for user root
Aug 17 01:09:01 hadoop-desktop CRON[17804]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 17 01:09:02 hadoop-desktop CRON[17804]: pam_unix(cron:session): session closed for user root
Aug 17 01:17:01 hadoop-desktop CRON[17817]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 17 01:17:01 hadoop-desktop CRON[17817]: pam_unix(cron:session): session closed for user root
Aug 17 01:39:01 hadoop-desktop CRON[17822]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 17 01:39:01 hadoop-desktop CRON[17822]: pam_unix(cron:session): session closed for user root
Aug 17 02:09:01 hadoop-desktop CRON[17839]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 17 02:09:01 hadoop-desktop CRON[17839]: pam_unix(cron:session): session closed for user root
Aug 17 02:17:01 hadoop-desktop CRON[17851]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 17 02:17:01 hadoop-desktop CRON[17851]: pam_unix(cron:session): session closed for user root
Aug 17 02:39:01 hadoop-desktop CRON[17856]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 17 02:39:01 hadoop-desktop CRON[17856]: pam_unix(cron:session): session closed for user root
Aug 17 03:09:01 hadoop-desktop CRON[17871]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 17 03:09:01 hadoop-desktop CRON[17871]: pam_unix(cron:session): session closed for user root
Aug 17 03:17:01 hadoop-desktop CRON[17884]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 17 03:17:01 hadoop-desktop CRON[17884]: pam_unix(cron:session): session closed for user root
Aug 17 03:39:01 hadoop-desktop CRON[17890]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 17 03:39:01 hadoop-desktop CRON[17890]: pam_unix(cron:session): session closed for user root
Aug 17 04:09:01 hadoop-desktop CRON[17906]: pam_unix(cron:session): session opened for user root by (uid=0)