"Doesn't quite do it" isn't a lot of information to go on, I'm afraid. Next time you post (and I do encourage you to post again), please explain *what* the problem is (what results did you get, what else have you tried, etc.).

Are you sure the fields in each line are separated by a space? Maybe it's tabs?

You know that what you want is in the third field, however the whole line should be split, and you can further narrow that down to what's on the left of the minus sign. So you can use split all the way through. Here's a snippet which makes a few assumptions, which I've tried to document. 

# assuming it's tabs; change "\t" to "\s" or "\s+" as appropriate
my ($router, $cache, $tmp, $as, $sample) = split ("\t", $line); 
my $host = (split "-", $tmp)[0]; # grab LHS of $tmp
$host =~ tr/0-9//d; # strip any digits -- whether this is right
            # REALLY depends on your data

[download]

HTH

Philosophy can be made out of anything. Or less -- Jerry A. Fodor

In reply to Re: Simple Regex Question by arturo
in thread Simple Regex Question by Anonymous Monk

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