Jwkrahn, thanks very much for the comments and the links where to find the information. It has been great to have some insight on how to reduce code and to understand the logic behind it. It has also been useful to look at the system command and see how it works with lists (so I now use lists in all the system calls instead of scalars). I have spend some time getting the meaning of ( 0 ) x $ulr_number. Good trick!

I have included your suggestions into the original message. Hope this is all right.

Very impressed with perl expressiveness: easy to start write code, tricky to master it! For somebody like me without computer knowledge or experience is very exciting! Very greateful!

Cheers!

In reply to Re^2: Create a ipset for blocking networks based on internet sources by mimosinnet
in thread Create a ipset for blocking networks based on internet sources by mimosinnet

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