Sunrise and Sunset device via shellsensor plugin

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Hey Folks!
DDNRN asked me to check whether there’s a way for sunrise and sunset displaying in the gui and already gave me the curl command. I used a similar setup as at the uptime device with an external shell script.

so first create a script in your home/pi directory called sunrise.sh :

#!/bin/bash
# sunrise.sh
# shellscript to extract sunrise and sunset from yahoo weather 
# insert your correct location code at w=xxxxxx. 
# you can get it at http://weather.yahoo.com and enter your zip or city

sunrise=$(curl -s http://xml.weather.yahoo.com/forecastrss?w=644719 | grep astronomy | awk -F\" '{print $2}'|{ date -f - +%R; })
sunset=$(curl -s http://xml.weather.yahoo.com/forecastrss?w=644719 | grep astronomy | awk -F\" '{print $4}'|{ date -f - +%R; })

echo "Aufgang $sunrise Uhr, Untergang $sunset Uhr"

short translation : Aufgang = sunrise, Untergang = sunset, Uhr = o’clock

then you can create the device in the config.json like this :

    {
	  "id": "sonnenstand",
	  "name": "Sonne",
	  "class": "ShellSensor",
	  "attributeName": "time",
	  "attributeType": "string",
	  "attributeUnit": "",
	  "command": "sudo bash /home/pi/sunrise.sh",
	  "interval": 3600000
	}

the update interval is every hour. so if you reboot the pi before midnight it will update the sunrise/sunset in a relative short time.

well, then have fun with pimatic again
cheers

P.S.: here’s how to get your location code w=
go to http://weather.yahoo.com/ and insert zip or city, hit search weather and read your location code above at the url. simple, isn’t it

Hey it looks gread.
Can you tell me how I can make the .sh file at the shortes way.
Thank you

@fabikrauss

sure
ok follow these steps :
cd /home/pi

sudo nano sunrise.sh

copy the code for the script from above
then paste it to nano editor. if using putty just do a right mouse click.
the code will be inserted automatically then.

after that exit nano with the following keys strg+x , y , enter
the script is saved as sunrise.sh.
you can try to run it with
sudo bash sunrise.sh

if it fails, do the following :
sudo apt-get install dos2unix
when this little tool has been installed, you’ll have to run this command :
dos2unix sunrise.sh
now try again to run the script. should work.

Thanks a lot! It works very well ! A good and fast tutorial. Maybe I´m now abel to use other Shells.

Und nette grüße nach Dillenburg!

Und nette grüße nach Dillenburg!

danke danke
If there are any further questions go ahead.

Uhh… thank u very mutch, It’s working !

Question to Linux-Prof’s:
Is there a difference when just make it executable once with sudo chmod a+x sunrise.sh instead of sudo bash sunrise.sh and then start it as usual with sudo ./sunrise.sh or by shellscripting?

@DDNRN said:

chmod a+x sunrise.sh

I think when you chmod a+x sunrise.sh you make sunrise.sh executable by everyone and when you run sudo bash sunrise.sh or sudo ./sunrise.sh you execute it with root privileges.

Yes of course if i run it with sudo it’s root, both working w/o sudo as well I tested.
But my question is what is the difference between using ./script.sh after made it executable or using bash xxx.sh.
For me it looks like same thing but often it is a big difference like in security things I wish to understand.

@DDNRN for long answer see here , short answer ./script.sh will run the script and bash script.sh will open bash that will then run script.sh

@sebastienvg
Thanks: My answer I found in that is like:

I recommend using ./script.sh though, because you might not know which interpreter the script is requiring. So let the program loader determine that for you.

So for me it sounds like there is not really a difference, both is OK.

indeed both are ok, I’d rather go with chmo +x (or a+x) as you can then put the script in /usr/bin and it is available very easily from the shell

# script

you also don’t open another bash instance.

here’s another version using the program sunwait:

"command": "/home/pi/sunwait -p 68.191971N -38.17749E | grep 'Sun rises' | awk '{print $3\" / \" $6}' | sed -r 's/([0-9]{2})([0-9]{2})/\\1:\\2 Uhr/g'",

This is the output:

Hi.

ich schreib gleich mal auf deutsch. hoffe das ist kein Problem.
Hab jetz mal versucht den Script nachzustellen. Geht auch per Kommandozeile.
Die Frage ist jetzt nur, wie bekomm ich das in Pimatic angezeigt?
Gibt es auch eine Möglichkeit zur anzeige der aktuelle Zeit und des Datums?

Gruß Ronny

ich schreib dich im chat an, dann helf ich dir weiter OK?

Or easy without extra use of scripts:

Sun Up / Under ______ 6:54 am / 8:27 pm

{
  "id": "sun-up-under",
  "name": "Sun Up / Under",
  "class": "ShellSensor",
  "attributeName": "time",
  "attributeType": "string",
  "attributeUnit": "",
  "command": "curl -s http://weather.yahooapis.com/forecastrss?w=727232 | grep astronomy | awk -F\\\" '{print $2 \" / \"  $4}'",
  "interval": 43200000
},

Well for “class”: “ShellSensor” pimatic-shell-execute plugin is required but that’s all you need!

@pimagic And how do i get 2400 time instead of am/pm

@sweebee
maybe you have wrong locale settings ?
try sudo locale to see them.
those are mine for german

i inserted export LC_ALL="de_DE.UTF-8" as last line to the basrc.
maybe you can do it for NL too or only set lc_time. You can also check here:
http://perlgeek.de/en/article/set-up-a-clean-utf8-environment

also you can edit the local settings with sudo nano /etc/default/locale

Yes, it was still US. changed it but now my pi won’t start properly XBMC (xbian) won’t start and pimatic can’t open the usb ports.

@sweebee
wow!! everything ok again?!
cannot tell you why that happened, here’s all ok with this, except XBMC - i don’t have it installed.

No, i just reinstalled everything since i had no time to figure it out. Pimatic controls almost all the lights at home, and i coulndt wait to see game of thrones