One more question, why can't I do this?? 
    38  foreach $callid (sort keys %data1) {
    39  #   print " @{$data1{$callid}}\n";
    40      my $fields = join (/\s*/, @{$data1{$callid}});
    41      print "$fields\n";
    42  }
    43  close FH;

[download]
With print statement alone(which is commented out), it works as designed(with next two lines commented out) 
~/script/perl/temp@myserver1 >./program file1
There were 0 which could not detect
 INVITE  100 180 200 ACK  BYE  200
 INVITE  100 180 200
 180 200 ACK  BYE  200

[download]
but when I run as above (with print statement # out with next two open with join), I get below 
There were 0 which could not detect
Use of uninitialized value at ./perl.m2 line 40, <FH> chunk 32.
INVITE 1100118012001ACK 1BYE 1200
Use of uninitialized value at ./perl.m2 line 40, <FH> chunk 32.
INVITE 110011801200
Use of uninitialized value at ./perl.m2 line 40, <FH> chunk 32.
18012001ACK 1BYE 1200

[download]

In reply to Re^4: multiple values per key by convenientstore
in thread multiple values per key by convenientstore

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