How to make a command automatic?

Bella

Hi. Can someone please me how to automate the following commands every 3 hours. I am using Centos 5 32 bit

• service iptables save
• service openvpn restart
• service httpd restart

It would be very appreciated. Thanks

BK_

Maybe this'll help? http://www.centos.org/docs/5/html/5.1/Deployment_Guide/s2-autotasks-cron-configuring.html

nunim

Cron.

http://www.cronmaker.com/

Bella

@nunim said:
Cron.

http://www.cronmaker.com/

According to that every 3 hours is

0 0 0/3 1/1 * ? *

So would i just type

crontab -e

and put

0 0 0/3 1/1 * ? * service httpd restart

?

Bella

@BK_ said:
Maybe this'll help? http://www.centos.org/docs/5/html/5.1/Deployment_Guide/s2-autotasks-cron-configuring.html

Thanks I just put the 3 commands in a file called vpn.sh and then added the cron
0 0 0/3 1/1 * ? * /root/vpn.sh

DalComp

@imtiax said:

I think it should be 0 */3 * * * /root/vpn.sh

painfreepc

Can only Show you How i would Do it in Ubuntu, i don't know centos and i am no pro at linux.

"crontab -e"

0 */3 * * * /root/vpn.sh

simple shell script:

place the 4 lines in a file - call it "vpn.sh"

place in root folder

#!/bin/bash
service iptables save
service openvpn restart
service httpd restart

chmod 700 /root/vpn.sh

sleddog

painfreepc said: esac

That closes a case statement. As there isn't one, it shouldn't be there

GIANT_CRAB

Use either crontab or cronjob.

@painfreepc that works on CentOS as well.