Arch Linux

brazzmonkey

Member

From: between keyboard and chair

Registered: 2006-03-16

Posts: 818

How to setup a system-wide keyboard shortcut to shutdown computer?

Hello there.
I hide my box in a cupboard (!)
I've got an external power switch to bring it to life.
But I need to open the cupboard and push my computer power button to switch it off.

Is there a way to set up a system-wide keyboard shortcut? I'd like to power off my computer when I hit, say, Ctrl+Alt+End.

Thanks.

Last edited by brazzmonkey (2009-05-22 18:11:44)

---

what goes up must come down

hcjl

Member

From: berlin

Registered: 2007-06-29

Posts: 330

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

for instance

gnome-terminal -x poweroff

with gnome terminal

urxvt -e poweroff

with urxvt

...

you can create a shortcut or a hot key.

Last edited by hcjl (2009-05-22 12:25:17)

brazzmonkey

Member

From: between keyboard and chair

Registered: 2006-03-16

Posts: 818

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

Thanks, but that's not exactely what I'm looking for...
First of all, I use LXDE on this machine. But I want to set up a hot key in a way that is not LXDE (or any other DE) related. I want it to work in console mode as well, and, if possible, not rely on a specific program. That's what I meant by system-wide.

---

what goes up must come down

moljac024

Member

From: Serbia

Registered: 2008-01-29

Posts: 2,676

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

Thanks, but that's not exactely what I'm looking for...
First of all, I use LXDE on this machine. But I want to set up a hot key in a way that is not LXDE (or any other DE) related. I want it to work in console mode as well, and, if possible, not rely on a specific program. That's what I meant by system-wide.

Put this in your sudoers:

your_username ALL=(ALL) NOPASSWD: /sbin/shutdown -h now

Then just make a shortcut for "sudo shutdown -h now". The NOPASSWD: is the important part here.

Check out /etc/inittab. There is a shortcut defined for alt+ctrl+del (it reboots the system, you can change that so it shuts down, perhaps you can add your alt+ctrl+home keybind there but I'm not sure, haven't fiddled with it)

Last edited by moljac024 (2009-05-22 19:41:24)

---

The day Microsoft makes a product that doesn't suck, is the day they make a vacuum cleaner.
--------------------------------------------------------------------------------------------------------------
But if they tell you that I've lost my mind, maybe it's not gone just a little hard to find...

whoops

Member

Registered: 2009-03-19

Posts: 891

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

Hi!

I saw reset/strg+alt+rm being set in some config file I browsed not long ago (I think I was fooling around with "sudo cat $(sudo find /etc -type f -readable) | grep stuff") and somewhere I read something about how to disable that in a very old xorg.conf. It don't recall where, don't know if one can put those things together (setting shortcut for shutdown + disable xorg disabling the shurtcut) but maybe that reminds someone of something useful

good luck!

Ashren

Member

From: Denmark

Registered: 2007-06-13

Posts: 1,229

Website

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

Check this out: http://wiki.archlinux.org/index.php/Ext … in_Console

I believe you will have to define the key combinations in X as well.

I'll throw in this as well: http://linuxgazette.net/issue55/henderson.html

Last edited by Ashren (2009-05-22 19:46:19)

---

Use LVM2!

XMobar/XMonad - Click Workspaces :: Blog about Linux (mostly) :: Script for repetitive scrotting :: ISC DHCP Git Hooks

brazzmonkey

Member

From: between keyboard and chair

Registered: 2006-03-16

Posts: 818

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

@moljac024
I know I can set Ctrl+Alt+Del to shutdown in inittab, but that's not the point, because I'd like to keep for reboots. I hoped I could find a way to add other combinations and actions, but so far I haven't found anything relevant.

@Ashren
I think we're getting closer here. Stille have to investigate a bit, I guess.

---

what goes up must come down

brazzmonkey

Member

From: between keyboard and chair

Registered: 2006-03-16

Posts: 818

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

I still haven't found a proper way to set a keyboard shortcut. I need it to work with no user being logged on the machine.
Any guidance would be appreciated.

Thanks.

---

what goes up must come down

theapodan

Member

From: Virginia, USA

Registered: 2008-10-21

Posts: 116

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

You can use xbindkeys to set a shortcut for X.  X controls the keyboard  while it runs, so a console keyboard definition like in Ashren's post won't work under X.

As to the console, Ashren's links look promising??  Did it not work?

R00KIE

Forum Fellow

From: Between a computer and a chair

Registered: 2008-09-14

Posts: 4,734

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

How about "extending" the computer power button to the outside?

---

R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K

gazj

Member

From: /home/gazj -> /uk/cambs

Registered: 2007-02-09

Posts: 681

Website

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

How about "extending" the computer power button to the outside?

Don't extend it, leave it there and then wire a second power button in parralell with the existing one.

---

dotfiles : shots : musik : linux : .bin : dwarf blog

kazuo

Member

From: São Paulo/Brazil

Registered: 2008-03-18

Posts: 413

Website

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

I use actkbd (it is in aur) with it you can have a system-wide keyboard shortcut

Last edited by kazuo (2009-06-19 21:27:22)

brazzmonkey

Member

From: between keyboard and chair

Registered: 2006-03-16

Posts: 818

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

I'm a bit concerned about allowing shutdown in my /etc/sudoers. My PC is also a server so it can be a security flaw.

About Readline, it's such a pain for me... I understood I would have to add something like this:

C-M-[End key here]: "/sbin/shutdown -h now"

in /etc/inputrc.
But I don't know what I should write to specify the "End" key.

In X, I did not achieved a success either. I set

"sudo /sbin/shutdown -h now"
Control+Alt+Mod2 + End

in .xbindkeysrc and added xbindkeys to my ~/.xinitrc. Doesn't work.

Last edited by brazzmonkey (2009-06-19 22:46:20)

---

what goes up must come down

dmartins

Member

Registered: 2006-09-23

Posts: 360

Re: How to setup a system-wide keyboard shortcut to shutdown computer?

For readline, try:

"\C-\M-\x6B": /sbin/halt

Make sure you keep the quotes. This is the "keyseq": function-name format shown in man readline. I'm not sure if hex 6B is the right code for the End key, I got the keycode from http://www.comptechdoc.org/os/linux/how … codes.html and converted it to hex.

You could also try:

"\C-\M-\e[4~": /sbin/halt

Reference: http://www.comptechdoc.org/os/linux/how … progs.html