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Re: opening large files (few hundred meg)

From: Sven Joachim
Subject: Re: opening large files (few hundred meg)
Date: Mon, 28 Jan 2008 19:05:41 +0100
User-agent: Gnus/5.110007 (No Gnus v0.7) Emacs/22.1.50 (gnu/linux)

On 2008-01-28 18:35 +0100, Xah Lee wrote:

> If i want to process a huge file (my weekly log file is about 0.5GB),
> what can i do?

If it is so huge, you may want to rotate it daily rather than weekly.
See logrotate(8), for instance.

> i tried to open and it says maximum buffer size exceeded.
> • How can i increase the limit?

Use a 64-bit system.

> • is there a general solution to work with files (elisp) without
> actually loading the whole file?

Not really, since visiting a file reads all of it into an Emacs buffer.
If the file is too large, you can split(1) it into smaller chunks that
Emacs can process.


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