Re: Modifying a file

[Stephen Leake <Stephe.Leake@nasa.gov>]

"Bobby D. Bryant" <bdbryant@mail.utexas.edu> writes:

> On Tue, 29 Jul 2003 04:36:58 -0700, Daniel Allex wrote:
> 
> > I have a file that is 13 lines long and I want to change the values of
> > the last 5 lines.  What's the best way to do this?

Read in the whole file to an unconstrained array of an appropriate
type, change the data, write out a new file with the same name.

If you want a more detailed answer, you'll have to provide more info.
Note that this sounds like a homework problem; we don't do people's
homework for them.

> If it's a source file or data file you probably want to use a text editor
> or language sensitive editor such as vi, emacs, and many others.
> 
> You could get more detailed suggestions if you said what was in the file

Definitely necessary information.

> and what operating system it is on.

Part of the point of Ada's various file operations is to be OS
independent, so we _shouldn't_ need this information unless it turns
out that the standard Ada facilities can't do what they need.

-- 
-- Stephe