editing large files

editing large files

[Sebastian Luque]

Hi,

I need to edit some relatively large files (~ 200 Mb), so I'm exceeding
the maximum buffer size allowed by my Emacs (GNU Emacs 21.4.1
(i486-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of 2005-10-02 on
trouble, modified by Debian).  Searching for solutions it seems that the
only way to do this would be to use a 64-bit machine and Emacs.  Is this
correct?  What alternatives are people using on a 32-bit machine?


Cheers,

-- 
Sebastian P. Luque

Re: editing large files

[Pascal Bourguignon]

Sebastian Luque <spluque@gmail.com> writes:

> Hi,
>
> I need to edit some relatively large files (~ 200 Mb), so I'm exceeding
> the maximum buffer size allowed by my Emacs (GNU Emacs 21.4.1
> (i486-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of 2005-10-02 on
> trouble, modified by Debian).  Searching for solutions it seems that the
> only way to do this would be to use a 64-bit machine and Emacs.  Is this
> correct?  What alternatives are people using on a 32-bit machine?

split;emacs;cat

-- 
__Pascal Bourguignon__                     http://www.informatimago.com/

Re: editing large files

[David Kastrup]

Sebastian Luque <spluque@gmail.com> writes:

> I need to edit some relatively large files (~ 200 Mb), so I'm exceeding
> the maximum buffer size allowed by my Emacs (GNU Emacs 21.4.1
> (i486-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of 2005-10-02 on
> trouble, modified by Debian).  Searching for solutions it seems that the
> only way to do this would be to use a 64-bit machine and Emacs.  Is this
> correct?  What alternatives are people using on a 32-bit machine?

emacs-snapshot has a max buffer size of 256MB, xemacs of 1GB (IIRC).

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum

Re: editing large files

[Tim X]

Sebastian Luque <spluque@gmail.com> writes:

> Hi,
> 
> I need to edit some relatively large files (~ 200 Mb), so I'm exceeding
> the maximum buffer size allowed by my Emacs (GNU Emacs 21.4.1
> (i486-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of 2005-10-02 on
> trouble, modified by Debian).  Searching for solutions it seems that the
> only way to do this would be to use a 64-bit machine and Emacs.  Is this
> correct?  What alternatives are people using on a 32-bit machine?
> 
> 

For large files, I usually just split them up, do my editing and then
join them back together again. If the changes I need to make are
repetitive or fairly easily specified in a programatic fashion, I just
use sed.

Tim


-- 
Tim Cross
The e-mail address on this message is FALSE (obviously!). My real e-mail is
to a company in Australia called rapttech and my login is tcross - if you 
really need to send mail, you should be able to work it out!

Re: editing large files

[Sebastian Luque]

Tim X <timx@spamto.devnul.com> wrote:

[...]

> For large files, I usually just split them up, do my editing and then
> join them back together again. If the changes I need to make are
> repetitive or fairly easily specified in a programatic fashion, I just
> use sed.

Thanks to all of you for your suggestions.  Indeed, I ended up using AWK,
since they were all comma-delimited files (tables).


Cheers,

-- 
Sebastian P. Luque