Script to Shutdwon and startup Oracle instance

Hi
Can any one tell how to create a batch file to shutdwon or startup Oracle instance in NT server ?
Yasir

Assume you are using ora8i and the script file is called start.bat and shutdown.bat. Their contents are as follows:
cd %ORAHOME%
set oracle_sid=%SID%
%ORAHOME%\bin\svrmgrl
connect internal/password
startup pfile=%init_file_path%
exit
cd %ORAHOME%
set oracle_sid=%SID%
%ORAHOME%\bin\svrmgrl
connect internal/password
shutdown immediate
exit
Please replace %ORAHOME% and %SID% with related string.
Thanks

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    Justin

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