Try to tie the large hash to a disk file. Your program should'nt need any changes.

(Except, perhaps, that scalar is unnecessary in 

file_number > scalar( @{ $data{$key} } )

[download]
The numeric comparison already provides scalar context, so 
file_number > @{ $data{$key} }

[download]
is equivalent.)

Anno

In reply to Re: Merging/Joining Multiple Large Files by Anno
in thread Merging/Joining Multiple Large Files by bernanke01

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