wget -O - -q -t 1 http://yoursite.com/cron.php

I'd like to get more of a handle on setting cron jobs.

So what do each of these options do?

-O
-
-q
-t
1

????
Anyone know?

"cron" jobs are just programs set to run at particular times or frequencies via the cron facility. Any command line options you see are for the program that is to be run - so to find out what the options you mention do, search the web for info on the wget command - best way to sart is with the man pages: search for "man wget" for info.

For those interested:

Linx or Wget

The Web site for Lynx is http://lynx.isc.org/. The Web site for Wget is http://www.gnu.org/software/wget/. Lynx is a Web browser and does not require parameters to read cron.php. Lynx is the easiest way to activate cron.php.
Some people insist on using wget. Perhaps they do not have lynx installed. Wget gets files and needs special parameters to get a Web page. Note that qwget is not semantic. The decorative upper case -O is a different option to the regular case -o.
-O - tells wget where to put the output file and the second dash, - tells wget the output location is the screen. This complicated non semantic option specification makes wget behave the same as the default lynx. If you do not use the -O -, you have to specify a location for the retrieved file and make sure the location has the right permissions.
-q tells wget to be quiet and not produce messages.
-t 1 means retry once. The default without the t option is 20 retries. -t 0 will send wget into an infinite loop retrying.

cron.php?