Re: Maximum buffer size exceeded

[Michael Welsh Duggan <md5i@cs.cmu.edu>]

Harish Narayanan <harish@gamebox.net> writes:

> Thanks Kin.
>
> I do things like that when I need to edit the last or first few
> lines. What if the portions I need edited are at some arbitrary line
> numbers in the middle? I don't always know exactly where they will be.

I had to deal with this recently for some files, as I ended up using
something like "split -C 100m".  You can use cat to rejoin them
afterwards.

> Kin Cho wrote:
>
>>Harish Narayanan <harish@gamebox.net> writes:
>>
>>  
>>
>>>I've been trying to open a large file (208 MB) but I receive the
>>>error "Maximum buffer size exceeded" and Emacs fails to open the
>>>file. This is Emacs 21.2.1 on a Redhat GNU/Linux 9 box.
>>>
>>>I tried searching in the archives, and noticed this has been
>>>asked before, but the responses don't seem encouraging. Is there
>>>a way of working around this that's arisen in the recent past?
>>>    
>>>
>>
>>Use head/tail/dd to extract the small part of the file you want
>>to edit, edit that small file, then use cat/head/tail/dd to put
>>it back into your original file.
>>
>>Let's say you want to edit the last line of the file 208MB, which
>>is 1 million lines long:
>>
>>tail -1 208MB > foo
>>emacs foo
>>(head -999999 208MB; cat foo) > new-208MB
>>
>>-kin
>>
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>>
>>  
>>
>
>
>

-- 
Michael Welsh Duggan
(md5i@cs.cmu.edu)