Or you could do write a SQL script (i.e. "cold_backup.sql") like this:

conn &1/&[Email Address Removed] as sysdba
define v_backup_dir=c:\tmp
set echo off
set feedback off
set heading off
set linesize 400
set pages 0
set timing off
set trim on
set trimspool on
set verify off
spool run_cold_backup.sql
select 'shutdown immediate;' from dual;
select 'host copy '||file_name||' &v_backup_dir'
from dba_data_files
order by tablespace_name, file_name
;
select 'startup open;' from dual;
spool off
set echo on
set feedback on
set heading on
set linesize 90
set pages 20
set timing on
set verify on
spool run_cold_backup.log
@run_cold_backup.run
spool off
undefine v_backup_dir
exit


Then run it like so:
c:\ sqlplus /nolog @cold_backup.sql sys change_on_install orcl


Of course, you could/should do something to hide passwords from peering
eyes, but that's a different story. And with a minor mod or two you could
make this run on both Unix/Linux and Windows.

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