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From: Lee Sau Dan <danlee@informatik.uni-freiburg.de>
Subject: Re: Reading portions of large files
Date: 20 Jan 2003 08:50:30 +0100	[thread overview]
Message-ID: <m3r8bahodg.fsf@mika.informatik.uni-freiburg.de> (raw)
In-Reply-To: m34r8h7wnx.fsf@wivenhoe.staff8.ul.ie

>>>>> "Brendan" == Brendan Halpin <brendan.halpin@ul.ie> writes:

    Brendan> Use head and tail to split the file into the
    Brendan> header-to-be-edited and the-rest. Edit the
    Brendan> header-to-be-edited in emacs, save, then concatenated
    Brendan> the-rest onto it.

    Brendan> Assuming all editing is within the first 2000 bytes (not
    Brendan> tested):

    Brendan> head -c2000 bigfile > header-to-be-edited 
    Brendan> tail -c+2001 bigfile > the-rest
    Brendan>  (edit header-to-be-edited, save) 
    Brendan> cat header-to-be-edited the-rest > new-big-file

Why not use 'split'?  :)


-- 
Lee Sau Dan                     李守敦(Big5)                    ~{@nJX6X~}(HZ) 

E-mail: danlee@informatik.uni-freiburg.de
Home page: http://www.informatik.uni-freiburg.de/~danlee

  parent reply	other threads:[~2003-01-20  7:50 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.100.1042135372.21513.help-gnu-emacs@gnu.org>
2003-01-09 18:20 ` Reading portions of large files David Kastrup
2003-01-10 19:21   ` Eli Zaretskii
     [not found]   ` <mailman.153.1042230313.21513.help-gnu-emacs@gnu.org>
2003-01-10 20:51     ` David Kastrup
2003-01-11  8:51       ` Eli Zaretskii
     [not found]       ` <mailman.169.1042278925.21513.help-gnu-emacs@gnu.org>
2003-01-11 10:42         ` David Kastrup
2003-01-12 20:38       ` Stefan Monnier <foo@acm.com>
2003-01-13  7:40         ` Miles Bader
2003-01-13  7:42           ` Miles Bader
2003-01-13  7:55             ` David Kastrup
2003-01-13  8:05               ` Miles Bader
2003-01-20  7:50         ` Lee Sau Dan
2003-01-24  7:55           ` Mac
2003-01-27 14:44           ` Stefan Monnier <foo@acm.com>
2003-01-10 16:27 ` Eric Pement
2003-01-10 17:16 ` Brendan Halpin
2003-01-10 20:35   ` Benjamin Riefenstahl
2003-01-11 10:25     ` Klaus Berndl
2003-01-20  7:50     ` Lee Sau Dan
2003-01-20 12:46       ` Benjamin Riefenstahl
2003-01-20  7:50   ` Lee Sau Dan [this message]
2003-01-09 15:45 Gerald.Jean

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