ML@ML110G6:~$ uname -a Linux ML110G6 2.6.32-37-generic #81-Ubuntu SMP Fri Dec 2 20:35:14 UTC 2011 i686 GNU/Linux ML@ML110G6:~$ date Sat Dec 31 15:19:21 JST 2011 ML@ML110G6:~$ shutdown -s shutdown: invalid option: -s Try `shutdown --help' for more information. ML@ML110G6:~$