How to setup Cron Job via ssh

[Nalini_sh]

I am trying to setup a Cron Job via SSH by running a php script. Can any one tell me that how should i setup a Cron Job? I do know the command required, but i don't know how to set the actual job up?

[Rudra.J]

To setup a Cron Job you should perform the following steps:-
1) nano /etc/crontab
2) 01 * * * * root run-parts /etc/cron.hourly
3) wget -O - -q -t 1 /path/to/cron.php
And if u want to make this run every two hours then you need to follow:

01 * 2 * * root run-parts /etc/cron.hourly

I am not very much sure whether it will run every two hours or not but the path mentioned in the above command is correct.

[jesse]

First of all you need to create cron.hourly right file, which is known as script.cron. The path at the end of your crontab is the file or script, that you want to run. A job every two hours might look like this:

0 0,2,4,6,8,10,12,14,16,18,20,22 * * * /path-to-script

and on some systems it will work like this:

* */2 * * * /path-to-script

[Solomon]

There are 2 ways through which you can setup a Cron Job:

1) To setup a Cron job, you should not need an extension (.cron) if it is text file

the "crontab" command will automatically put it in the correct directory

The following command:

bash$ crontab -l

will show you the current crontab. If You didn't get a crontab then, run the following command:

bash$ crontab /path/to/crontab or bash$ crontab /path/to/crontab.txt etc...

to check it run : bash$ crontab -l

2) Save your Crontab as a (plain) text file and name it "crontab" then,perform the following step:
open an SSH session, For listing your current crontab

bash$ crontab -l

For removing (i.e. delete) your current crontab.

bash$ crontab -r

For Setting the new crontab but check it with the "-l" parameter

bash$ crontab /path/to/crontab