Cron to reboot server?

ballistic509 · 04-20-2006, 04:02 PM

can anyone help me in making a cron job that debian will follow to reboot my server every midnight?

reddazz · 04-20-2006, 04:12 PM

0 0 * * * shutdown -r now

ballistic509 · 04-20-2006, 04:14 PM

is that exactly how i would enter it into shell? and it will store itself?

pljvaldez · 04-20-2006, 04:14 PM

Just out of curiosity, why do you want to reboot every night? I thought that generally that's one of the great things about linux, that you can restart only the services that you need to and don't have to cycle the hardware.

ballistic509 · 04-20-2006, 04:22 PM

Quote:

Originally Posted by pljvaldez

Just out of curiosity, why do you want to reboot every night? I thought that generally that's one of the great things about linux, that you can restart only the services that you need to and don't have to cycle the hardware.

im hosting a site on a..lets say "very crappy" system known to me and friends as the DynoComp..its a piece of shit but the only extra box i have..and i dont know how long it can really go untill it needs rebooting lol..below is system info LMAO

Code:

  CPU model AMD-K6tm w/ multimedia extensions 
  CPU MHz 212.99 
  CPU cache 64 KB 
  CPU bogomips 424.34

Code:

 Total RAM 53.24 MB
 Total Used 52.13 MB
 Swap 156.84 MB
 Swap Used 1.36 MB

ataraxia · 04-20-2006, 04:43 PM

Quote:

Originally Posted by ballistic509

is that exactly how i would enter it into shell? and it will store itself?

You need to add that line to the bottom of /etc/crontab. Once you put it there, it will stay until you take it away.

pljvaldez · 04-20-2006, 04:46 PM

Generally the way to edit the crontab is to become root and type crontab -e which will bring up your default text editor (mine is nano, but you might have vi, emacs, etc). Then enter the line somewhere, save, and exit.

ballistic509 · 04-20-2006, 04:46 PM

thanks ataraxia

reddazz · 04-20-2006, 05:15 PM

Quote:

Originally Posted by ballistic509

thanks ataraxia

You need to do as pljvaldez suggested (use crontab -e) because you can mess up your cron files if you edit them directly.

ataraxia · 04-20-2006, 05:30 PM

Quote:

Originally Posted by reddazz

You need to do as pljvaldez suggested (use crontab -e) because you can mess up your cron files if you edit them directly.

Most versions of the crontab program don't support /etc/crontab, but only the tabs in /var/cron/tabs . /etc/crontab is the exception to your normally correct rule.

anindyanuri · 04-22-2006, 07:34 AM

Quote:

Originally Posted by reddazz

You need to do as pljvaldez suggested (use crontab -e) because you can mess up your cron files if you edit them directly.

and how do i remove a previously entered cron job? also it will be helpful if you refer me a site to know more about cron job.

regards
anindyanuri

ataraxia · 04-22-2006, 09:45 AM

Quote:

Originally Posted by anindyanuri

and how do i remove a previously entered cron job?

You just need to remove the line that you put in.

anindyanuri · 04-23-2006, 12:22 PM

Quote:

Originally Posted by ataraxia

You just need to remove the line that you put in.

Please watch the Reddaz's post, and the advised not to mess up the file with direct editing itself.

regards
anindyanuri