Hi Perlmonks... I have some problem that may be trivial to most of you.. I have searched through the file input/output in the search.. and read them but doesn't seem to solve it. I have a very large file called me.db and each record in the file is separated by "\/\/\n" ( double/ and newline ). my file looks like this: 
AB   Naja atra (Chinese cobra).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Lepidosauria; Squamata; Scleroglossa; Serpentes; Colubroidea;
OC   Elapidae; Elapinae; Naja.
OX   NCBI_TaxID=8656;
//
DR   Pfam; PF00087; toxin; 1.
DR   PRINTS; PR00282; CYTOTOXIN.
DR   ProDom; PD000206; Snake_toxin; 1.
DR   PROSITE; PS00272; SNAKE_TOXIN; 1.
KW   Venom; Cytotoxin; Cardiotoxin; Multigene family; 3D-structure; Si
+gnal.
FT   SIGNAL        1     21
FT   CHAIN        22     81       CYTOTOXIN 2.
FT   DISULFID     24     42
//

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I give this file as an input when I compile it such as: 
perl myprog.pl a.db

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and I want to go to each record in the file and do something there.. But my code below.. they loop more than expected. For eq if I have 28 records separated my "\/\/\n" then they will loop until 70 times or more. This is my code: 
$/ = "\/\/\n";
$counter=1;
while (<>){
  # Read the entry
    print "Entry $counter\n";
    print "I don't know what to do \n";
  #do something  
    $counter++
    }

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Last time I also try this which is also doesn't work well: 
my $infile =$ARGV[0];
open(IN, $infile) or die "Can't open input file: $!";

$/ = "\/\/\n";
$counter=1;

while (<IN>){
  # Read the entry
    print "Entry $counter\n";
    print "Hallo to you....\n";
  # do something
    $counter++
    }

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So what do I have to do? Thanks in advanced.

In reply to hm strange loop for me.. by agustina_s

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