Hot backup : Loss of Online Redo Logs

oracle> cd /u01/app/oracle/venu
oracle venu> rm *.log
SQL> shut abort
oracle venu> cd /u01/hotbkp
oracle hotbkp> cp *.dbf /u01/app/oracle/venu
SQL> startup mount
SQL> recover database until cancel;
specify log : press enter one time
specify log : auto
SQL> recover cancel;
SQL> select open_resetlogs from v$database;
SQL> alter database open resetlogs;