What means '-s' that in 'Shutdown -s -t'

kingminsoo

i want to know about [Shutdown -s -t] Shutdown means 'shutdown'
-t means 'Time' but what means '-s'?? system?? or start?

AlessandroAffinito

on CentOS like systems that is not a valid argument

See

• shutdown --help
• man shutdown

RonaldBarnes

Also not a valid option on Ubuntu.