Perl doesn't have fseek--it has
seek, which
does the same thing. As far as I know.
There really isn't a good way of jumping to
a specific line in a file, unless your "lines"
are fixed-length. This is because Perl (and
your computer in general) thinks of files as
a sequence of bytes, not as a sequence of lines.
There are exceptions (one being files with
fixed-length records). Take a look at perlfaq5
and the DB_File manpage
(in particular, you'll want to look at the
DB_RECNO section).
One suggestion in perlfaq5 is to build an
index of line numbers mapping to byte positions
in the file. Then, when you need to jump to
a particular line X, you read the byte position
for line X from your index, then seek to that
byte position.
This may work for you.
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