Take a couple of lines from your data, then write a small test script to parse it. If you can't get that to work post it here (munging any sensitive data).

something like: 

@lines = ('Foo9 NA1234 blah blah blah',
          'Bar8 NA2345 blah blah blah',
          'Baz7 NA3456 blah blah blah');
foreach my $line (@lines) {
    next unless $line =~ m{^(\S+) NA(\d+) (.*)};
    my ($site, $userID, $data) = ($1, $2, $3);
    print "SITE: $site   USER: $userID   DATA: $data\n";
}

[download]


grep
One dead unjugged rabbit fish later

In reply to Re^3: Modifying a regex by grep
in thread Modifying a regex by seni

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