On 09/16/2015 02:06 PM, Ranjan Maitra wrote:

On Wed, 16 Sep 2015 11:05:36 -0800 Antonio Olivares <wingat...@inbox.com> wrote:



-----Original Message-----
From: maitra.mbox.igno...@inbox.com
Sent: Tue, 15 Sep 2015 20:12:22 -0500
To: users@lists.fedoraproject.org
Subject: Re: shutdown machine from crontab

Hi,

Can you try:

systemctl poweroff

instead of /usr/bin/poweroff and see if that works?

Many thanks and best wishes,
Ranjan


Ranjan,

Tried it and it does not poweroff machine via crontab.  However, from
$ systemctl poweroff

does poweroff machine.  What could be preventing it from shutting down.  I will 
try the -f option suggested also, then report back.

Best Regards,


Sorry, I do not have any idea:  you could try /usr/bin/systemctl poweroff but 
this is just a random stab...

I'm pretty sure this is caused by the fact that crontab entries don't
have a console associated with them and systemctl wants to spit stuff
out to stdout.  You could try redirecting stdout and stderr in your cron
entry:

        systemctl poweroff >/dev/null 2>&1

or possibly launch systemctl in a screen session:

        screen -S "sysshutdown" -d -m systemctl poweroff

The first MAY work (dunno if systemctl is that picky). The second would
run it in a screen session so it would have a stdin, stdout and stderr.
That is assuming you have screen installed (and why wouldn't you?). If
it failed you could "screen -r" and see what error systemctl is
spitting out.

This is just a guess.
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