More information: http://en.wikipedia.org/wiki/Cron
Some weather programs do not have yesterday weather values and also have no built in scheduled tasks. In our case we have to find a solution for WSWIN, WVIEW and Weatherlink.com
Because we need those yesterday values we run a smal script on our webserver at 23:50 (11:50 PM) to copy the min max values of today into a file which will be used shrotly (after 24:00) as yesterdays values.
The script which must be run is: www.yourwebsite.com/weather27/yesterday.php
So we need a cronjob at 23:50 every day to call www.yourwebsite.com/weather27/yesterday.php in a browser.
The number of regions to retrieve weather warnings from is “unlimited” when using Curly-scrips. The response time becomes unacceptable when using to much areas.
Here you find the readme Curly wrote: www.yourwebsite.com/weather27/usa/nws-alerts/NWS-alerts_read_me.html
We need a cron-jon to retrieve the weather warnings so that visitors do not have to wait for that.
The script which must be run is: www.yourwebsite.com/weather27/cron_job.php
This cronjob should run every 5 - 15 minutes and call our script www.yourwebsite.com/weather27/yesterday.php in a browser
Most WVIEW users could use the cron faciliteits of their Linux system they are runnig WVIEW on.
EN: You should use google to find recent instructions and how-to, example https://www.drupal.org/node/31506
A simple and free app. You set the time, copy the URL and specify which browser. That's all. http://macscheduler.net/
Check the help files /support forum of your hosating comapny