Re: [MacPerl] A few silly questions

[Ronald J Kimball <rjk@linguist.dartmouth.edu>]

On Thu, Apr 13, 2000 at 02:48:39PM +0000, Sveinbjorn Thordarson wrote:
> Hi there people
> 
> Sorry to bother you with this, but I'm somewhat inexperienced in using Perl
> and there are two things that I want to be able to do but lack the knowledge
> to perform.
> 
> 1)  How do I make a Perl script execute itself regularly on a UNIX
> server?...say if I wanted to have a script that sent me updates to a server
> log via email regularly?  How do I make the script execute itself every few
> hours or something like that?

cron.  `man crontab` to find out how to set up a cron job that will run at
specified times.

Your crontab entry might look something like:

* 0,4,8,12,16,20 * * * perl /path/to/script.pl

for execution every four hours starting at midnight.


> 2)  If I need to know the IP number of a visitor to my site, what do I do?
> Say I wanted to have a user account and use cookies?  Any hints?

The CGI module provides methods that make it easy to set and get cookies.
It also provides the remote_host() method, which returns the IP name or
number for the remote user.


Ronald

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