New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
OS X - Development and Darwin Discussion and questions about development for Mac OS X.

"shutdown -fh now" vs. the power button


Post Reply New Thread Subscribe

 
Thread Tools
crouching.tiger
Guest
 
Posts: n/a

Hi all,

from time to time, I use 'shutdown -fh now' to shut down my panther box, but most often just the standard point-and-click way.
Now I wonder: are there any differences in the way both routines behave?
I've already seen that the screen fades out more slowly using the GUI. It also seems as if the shell-option needs a bit more time once the screen has gone blue.

Anyone has any more details on this (specifically on the procedure when using the power button)?

Thank you
Michael
QUOTE Thanks
rman

 
rman's Avatar
 
Member Since: Dec 24, 2002
Location: Los Angeles, California
Posts: 12,591
rman has much to be proud ofrman has much to be proud ofrman has much to be proud ofrman has much to be proud ofrman has much to be proud ofrman has much to be proud ofrman has much to be proud ofrman has much to be proud ofrman has much to be proud ofrman has much to be proud of
Mac Specs: 2 x 3.0GHz Quad-Core, 6GB OS X 10.6.8 | 15in MacBook Pro 2.2GHz OS X 10.6.8 | 64GB iPad 2 WiFi

rman is offline
Here is my guess. When you are doing the command line shutdown. I believe that you are doing a fast halt. Whereas the GUI shutdown may not be doing the fast halt.

Life isn't about waiting for the storm to pass, It's about learning to dance in the rain!
QUOTE Thanks
witeshark

 
witeshark's Avatar
 
Member Since: Mar 09, 2004
Location: Miami FL
Posts: 2,860
witeshark will become famous soon enough
Mac Specs: G4 1Ghz OS X 10.4.7

witeshark is offline
SHUTDOWN(8) BSD System Manager's Manual SHUTDOWN(8)

NAME
shutdown - close down the system at a given time

SYNOPSIS
shutdown [-] [-fhkrn] time [warning-message ...]

DESCRIPTION
Shutdown provides an automated shutdown procedure for super-users to
nicely notify users when the system is shutting down, saving them from
system administrators, hackers, and gurus, who would otherwise not bother
with such niceties.

Available friendlinesses:

-f Shutdown arranges, in the manner of fastboot(8), for the file sys-
tems not to be checked on reboot.

-h The system is halted at the specified time when shutdown execs
halt(8).

-k Kick every body off. The -k option does not actually halt the sys-
tem, but leaves the system multi-user with logins disabled (for all
but super-user).

-n Prevent the normal sync(2) before stopping.

-r Shutdown execs reboot(8) at the specified time.

time Time is the time at which shutdown will bring the system down and
may be the word now (indicating an immediate shutdown) or specify a
future time in one of two formats: +number, or yymmddhhmm, where
the year, month, and day may be defaulted to the current system
values. The first form brings the system down in number minutes
and the second at the absolute time specified.

warning-message
Any other arguments comprise the warning message that is broadcast
to users currently logged into the system.

- If `-' is supplied as an option, the warning message is read from
the standard input.
At intervals, becoming more frequent as apocalypse approaches and start-
ing at ten hours before shutdown, warning messages are displayed on the
terminals of all users logged in. Five minutes before shutdown, or imme-
diately if shutdown is in less than 5 minutes, logins are disabled by
creating /etc/nologin and copying the warning message there. If this
file exists when a user attempts to log in, login(1) prints its contents
and exits. The file is removed just before shutdown exits.

At shutdown time a message is written in the system log, containing the
time of shutdown, who initiated the shutdown and the reason. A terminate
signal is then sent to init to bring the system down to single-user state
(depending on above options). The time of the shutdown and the warning
message are placed in /etc/nologin and should be used to inform the users
about when the system will be back up and why it is going down (or any-
thing else).

FILES
/etc/nologin tells login not to let anyone log in
/fastboot tells rc(8) not to run fsck when rebooting
QUOTE Thanks

Post Reply New Thread Subscribe


« write to file from kext | Help About Terminal! »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
iMAC DIES, HELP! Rapidly flashing clicking power button. Black screen. SYSTEM9 Apple Desktops 5 04-15-2012 11:30 PM
Silver G4 - Bad Power Supply Button? mj1 Apple Desktops 1 12-30-2008 10:07 PM
Emac power button broken digby75 Other Hardware and Peripherals 2 08-05-2004 01:10 AM
Where's the power button on the new keyboard? MoltenLava Switcher Hangout 21 06-17-2004 04:59 AM
My G4 866 will not Power up defender Other Hardware and Peripherals 0 02-23-2004 08:53 PM

All times are GMT -4. The time now is 11:17 PM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?