What I tried is: /timer 0 300 -e !list
and it just says that it is a bad command.
The error message is correct - !list is not a standard IRC or mIRC command, it's a channel trigger. What you need to do is use /msg to send that trigger to the relevant channel.
That said, I agree with Mentality on the file-sharing issue, and would add something else: please remember that sending out commands like that every few minutes is going to put a lot of extra load on the server as the responses are sent to you, and if lots of people start doing this it can ultimately lead to server admins deciding that they can't afford the bandwidth usage anymore, and to close down...
PM
