[tpm] Fast(er) way of deleting X lines from start of a file

[Madison Kelly]

Hi all,

   Thus far, I've opened a file, read it in, shifted/ignored the first X 
number of line and then wrote out the resulting file. This works, but 
strikes me as horribly inefficient. Doubly so when the file could be 
larger than RAM.

   So then, is there a more efficient/faster way of saying "Delete the 
first X number of lines from file foo"?

  Thanks all!

Madi