SHUTDOWN — User Commands

NAME

shutdown − shutdown and possibly reboot the system

SYNOPSIS

shutdown [−hSrdfq] [−R rebootStr] [−S sleepTime]

OPTIONS

−dEnter the debugger after shutting the system down.

−fDon’t check the disks when rebooting. Unless the −d or −h options are specified then −f implies −r.

−hForce the system to halt. This is the default unless the −f or −s options are used.

−rReboot instead of halt. This will use whatever is the default reboot string of the hardware.

−R rebootStrReboot the system with rebootStr as the string to reboot with.

−wDon’t write the file system cache back to disk or to the server. The default is to write it back.

−sReboot single user mode. Unless the −d or −h options are specified then −s implies −r.

−cReboot a fileserver as a client. This causes a fileserver to ignore the /boot directory on its local root partition. See the boot man page for more details.

−xCauses a fileserver to run rootcmds before diskcmds on reboot.

−qDo not use wall to announce the shutdown and do not pause before shutting down.

−S sleepTimeSleep sleepTime seconds after running wall.

INTRODUCTION

This command shuts down the operating system. By default the system is halted. However the system can be made to reboot or enter the debugger by specifying the correct options. By default, the shutdown is announced (on the local host only) using wall and the shutdown is delayed by several seconds to give people a chance to complain.

KEYWORDS

halt, reboot, shutdown, fastboot, boot