delete or drop a database

How to delete / drop a database?

To drop a database from batch file

echo connect / as sysdba >xyz.tmp
echo shutdown abort; >>xyz.tmp
echo startup mount exclusive restrict; >>xyz.tmp
echo drop database; >>xyz.tmp
echo exit; >>xyz.tmp;

sqlplus.exe /nolog @xyz.tmp
del xyz.tmp

To drop a database from shell script

echo connect / as sysdba >xyz.tmp
echo shutdown abort; >>xyz.tmp
echo startup mount exclusive restrict; >>xyz.tmp
echo drop database; >>xyz.tmp
echo exit; >>xyz.tmp;

sqlplus.exe /nolog @xyz.tmp
rm xyz.tmp