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  1. or download this
    P:\test>perl -ne"$p=tell ARGV; print if /Larry|Robb/ and not scalar <>
    + =~ /Larry|Robb/; seek ARGV, $p, 0; " logfile
    1056128833340 Robb 2003-06-20 665 **
    1055439973653 Larry 2003-06-16 815 **
    
  2. or download this
    perl -ne"BEGIN{$C=0}$p=tell ARGV; ++$c, print if /Larry|Robb/ and not 
    +scalar <> =~ /Larry|Robb/; seek ARGV, $p, 0; exit if $c==2 " logfile
    
  3. or download this
    perl -ne"BEGIN{$C=0}$p=tell ARGV;/Larry|Robb/&<>!~/Larry|Robb/and++$c,
    +print;seek ARGV,$p,0;$c==2&&exit" logfile