SQL> ALTER SYSTEM CHECKPOINT ;
System altered.
SQL> select current_scn from v$database;
CURRENT_SCN
-----------
20101799
SQL> select to_char(20101799,'xxxxxxxxx')from dual;
TO_CHAR(20
----------
132baa5
[oracle@devin-enmo controlfile]$ sz control01.ctl
rz
Starting zmodem transfer. Press Ctrl+C to cancel.