Steve Bertrand wrote:
man 1 split
(esp. -l)
That's probably the best option for a one-shot deal like this. On the
other hand, Perl itself provides the ability to go through a file one
line at a time, so you could just read a line, operate, write a line (to
a new file) as needed, over and over, until you get through the whole
file.
The real problem would be reading the whole file into a variable (or even
multiple variables) at once.
This is what I am afraid of. Just out of curiosity, if I did try to read
the entire file into a Perl variable all at once, would the box panic,
or as the saying goes 'what could possibly go wrong'?
Steve
Check out Tie::File on CPAN. This Perl module treats every line in a
file as an array element, and the array element is loaded into memory
when it's being requested. In other words: This will work great with
huge files such as these, as not the entire file is loaded into memory
at once.
http://search.cpan.org/~mjd/Tie-File-0.96/lib/Tie/File.pm
Jorn
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