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Top Forums UNIX for Dummies Questions & Answers Sort a las file keep the header as it is Post 302954835 by cjcox on Friday 11th of September 2015 11:48:22 AM
Old 09-11-2015
Operating inline of the file? Hard.

If you can tolerate a stream of output from processing the file twice, then ok. I'm assuming only one ~Ascii in the file.

Code:
sed -n '1,/^~Ascii/p' <test.las; sed  '1,/^~Ascii/d' <test.las | sort -k1,1n

 

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aecat(1)						      General Commands Manual							  aecat(1)

NAME
aecat - display an aewan document SYNOPSIS
aecat [-b] [-c] [-{n|N}] [{-p | -l <layer_num>}] [-f <format>] [-o <output_file>] inputfile DESCRIPTION
This is an utility program that will convert an aewan document to ANSI escape sequences so that it can be rendered on a standard terminal. Alternatively, it can also generate HTML code for displaying the document in a web page. Any particular layer of the document may be con- verted, or you may request a composite of all layers. OPTIONS
-f specifies output format - can "text", "html" or "comment". Default is "text". The "comment" format extracts document metadata. -c prepend a 'clear screen' escape sequence (only valid when outputting text). -o<file> writes output to specified file rather than stdout -b disables output of color (only characters will be printed). -l<layer_no> specifies which layer of the document is to be used (must be an index, not a layer name). By default, layer 0 will be used. -L displays the number of layers in the file. -p exports a composite, that is, overlays all visible layers, paying attention to layer transparency, etc. The size of the composite will be the size of the first layer -n suppress output of newlines -h prints a short help text AUTHORS
This program is part of the Aewan Ascii Art Editor package. See aewan(1) for author information. LICENSE
Copyright (c) 2004-2005 Bruno Takahashi C. de Oliveira. All rights reserved. This program is licensed under the GNU General Public License, version 2 or, at your option, any later version. For full license informa- tion, please refer to the COPYING file that accompanies the program. SEE ALSO
aewan(1), aewan(5), aemakeflic(1) aecat (Aewan Ascii Art Editor) March 2005 aecat(1)
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