In telnet if you have it, then use CRON. And it isn't easy but here is how to use it.
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USING CRON
What Is Cron?
Cron jobs are a way of automating tasks that you
want done every week/month/day and at a certain time.
NOTE: cron needs full paths for everything, so you
must use full paths in the variables in a cgi script
A Quick Overview Of Crontab Entries
An example of a crontab entry could be:
25 0 1 * * /usr/links/admin/script.cgi
which runs a script in /usr/links/admin/ called script.cgi
at 12:25 am on the first of every month.
In Depth Explanation of A Crontab Entry
An entry consists of two parts - a time to run, and a command to run.
The time to run (the first part of the entry) is broken up into 5 fields:
1. minute of the hour
2. hour of the day (on the 24 hour clock)
3. day of the month
4. month of the year (1 = January, 2 = February, etc.)
5. day of the week (0 = Sunday, 1 = Monday, 2 = Tuesday, ..., 6 = Saturday)
A "*" in one of these fields indicates that the job should be executed
at any or every one of these, so for instance a "*" in the month of the
year field means that this task should be carried out every month at the
time specified in the other fields. A "*" in the day of the week field,
when there is something in the day of the month field, does not mean that
this task should be carried out every day, but rather that it should be
carried out on the appointed day of the month regardless of what weekday
it is. Only "*"s in the day of the week field, and the day of the month
field, and the month of the year field would indicate a daily task.
Examples:
The job with this time to run would run every Sunday at 12:20 am.
20 0 * * 0
This job would run at midnight on any Friday the 13th.
0 0 13 * 5
You don't have to put just one time in a field. This job, for instance, would
run every day at 12:30am, 2:30am, 4:30am, 6:30am, 6:30pm, 8:30pm, and 10:30pm:
30 0,2,4,6,18,20,22 * * *
This one would run every Tuesday and Friday at 5:30 am:
30 5 * * 2,5
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