Oracle Database Discussions

Moved from another forum.

I want to run the following commands on a weekly basis with the Windows Scheduler:

sqlplus / as sysdba
alter database flashback off;

rman target=/
delete noprompt archivelog all;
delete noprompt backup of database;
delete noprompt copy of database;

Not sure how to pass the commands and also make sure the previous command is complete before the next one runs.