Deleting lines from a file

[Horacius ReX]

and regardless of the speed, what do you think would be the best
method to do this ?





Michael Bentley wrote:
> On Dec 17, 2007, at 5:34 AM, Horacius ReX wrote:
>
> > I need to write a program which reads an external text file. Each time
> > it reads, then it needs to delete some lines, for instance from second
> > line to 55th line. The file is really big, so what do you think is the
> > fastest method to delete specific lines in a text file ?
>
> AFAIK, there really isn't much you can do to *speed* the reading and
> writing of the large text file.  But maybe you can avoid doing it too
> much.  If you must make many changes it might help to just keep a list
> of lines to consider "deleted" -- and write the modified file out later.
>
> hth,
> Michael
>
> ---
> "I use tuples simply because of their mellifluous appellation." --Neil
> Cerutti