I need to set up a cron job for somebody's mailing list, and I can only find the scantiest information about how a cron job is created. I only have FTP access. How do I set up a cron job to run every five minutes, or what do I tell the person who owns the server to do? PS - Yes, the server does support cron. A cron job is already set up in one of the other sites on the server and I just want to replicate it.
You would not be able to set up a cron job via FTP access only. You require ssh or administration panel access. There are so many flavors of admin panels out there that it is very hard to select just one and give you instruction. SSH would allow you to create a crontab entry using a simple text editor such as vi or running the crontab -e command. -e means new entry.