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man pages section 1: User Commands     Oracle Solaris 10 8/11 Information Library
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Preface

Introduction

User Commands

acctcom(1)

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admin(1)

aedplot(1B)

alias(1)

allocate(1)

amt(1)

appcert(1)

apptrace(1)

apropos(1)

ar(1)

arch(1)

as(1)

asa(1)

at(1)

atoplot(1B)

atq(1)

atrm(1)

audioconvert(1)

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awk(1)

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basename(1)

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batch(1)

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cd(1)

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ckdate(1)

ckgid(1)

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ckkeywd(1)

ckpath(1)

ckrange(1)

ckstr(1)

cksum(1)

cktime(1)

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ckyorn(1)

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cu(1C)

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eqn(1)

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exportfs(1B)

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face(1)

factor(1)

false(1)

fastboot(1B)

fasthalt(1B)

fc(1)

fdformat(1)

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franklinp(1)

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hp7221plot(1B)

hpplot(1B)

i286(1)

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indxbib(1)

install(1B)

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ksh(1)

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Mail(1B)

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mixerctl(1)

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mp(1)

mpss.so.1(1)

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plot(1B)

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rksh(1)

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runat(1)

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scp(1)

script(1)

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yppasswd(1)

ypwhich(1)

zcat(1)

zlogin(1)

zonename(1)

shutdown

- close down the system at a given time

Synopsis

/usr/ucb/shutdown [-fhknr] time [warning-message]...

Description

shutdown provides an automated procedure to notify users when the system is to be shut down. time specifies when shutdown will bring the system down; it may be the word now (indicating an immediate shutdown), or it may specify a future time in one of two formats: +number and hour:min. The first form brings the system down in number minutes, and the second brings the system down at the time of day indicated in 24-hour notation.

At intervals that get closer as the apocalypse approaches, warning messages are displayed at terminals of all logged-in users, and of users who have remote mounts on that machine.

At shutdown time a message is written to the system log daemon, syslogd(1M), containing the time of shutdown, the instigator of the shutdown, and the reason. Then a terminate signal is sent to init, which brings the system down to single-user mode.

Options

As an alternative to the above procedure, these options can be specified:

-f

Arrange, in the manner of fastboot(1B), that when the system is rebooted, the file systems will not be checked.

-h

Execute halt(1M).

-k

Simulate shutdown of the system. Do not actually shut down the system.

-n

Prevent the normal sync(2) before stopping.

-r

Execute reboot(1M).

Files

/etc/rmtab

remote mounted file system table

Attributes

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Availability
SUNWscpu

See Also

fastboot(1B), login(1), halt(1M), reboot(1M), syslogd(1M), sync(2), rmtab(4), attributes(5)

Notes

Only allows you to bring the system down between now and 23:59 if you use the absolute time for shutdown.