Testing MySQL installation
System: Mac OS X (panther)

bin/mysqladmin version WORKS
bin/mysqladmin variables WORKS

bin/mysqladmin -u root shutdown FAILS
ERROR MESSAGE
bin/mysqladmin: connect to server at 'localhost' failed
error: 'Access denied for user: 'root@localhost' (Using password: NO)'

bin/mysqlshow WORKS

bin/mysqlshow mysql FAILS
ERROR MESSAGE
bin/mysqlshow: Access denied for user: '@localhost' to database 'mysql'

bin/mysql_install_db --user=mysql FAILS
ERROR MESSAGE
-bash: bin/mysql_install_db: No such file or directory

I am a newbie and no nothing about Unix.

Also need help with some called grant tables.

Thanks.
Vanessa