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Full Discussion: Cut big text file into 2
Top Forums Shell Programming and Scripting Cut big text file into 2 Post 302321498 by colemar on Monday 1st of June 2009 10:42:52 AM
Old 06-01-2009
Code:
cat bigfile
a
b
c
d potter
e
f pattern
g
h
i
j

grep -n 'p.tter' bigfile
4:d potter
6:f pattern

a=$(grep -n 'p.tter' bigfile)
a=${a%%:*}
echo $a
4

head -$a bigfile
a
b
c
d potter

tail +$((a+1)) bigfile
e
f pattern
g
h
i
j

If you have csplit:
Code:
csplit bigfile '/p.tter/+1'
15
20

cat xx00
a
b
c
d potter

cat xx01
e
f pattern
g
h
i
j

csplit bigfile '/p.tter/+1' '/p.tter/+1'
15
12
8

cat xx00
a
b
c
d potter

cat xx01
e
f pattern

cat xx02
g
h
i
j

Last edited by colemar; 06-01-2009 at 11:52 AM..
 

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LEARN ABOUT DEBIAN

gchem3d

GCHEM3D(1)						       gnome-chemistry-utils							GCHEM3D(1)

NAME

       gchem3d - a small chemical viewer application

SYNOPSIS

       gchem3d [OPTION(S)...] [FILE...]

DESCRIPTION

       gchem3d is a small chemical viewer application, which can show several chemical file formats.

OPTIONS

       The following options are accepted:

       -b COLOR, --bgcolor=COLOR
	   Use the given color as background color.  COLOR can be one of "black" (default), "white", "#rrggbb" (don't forget to escape the "#"
	   character in the shell).

       -d MODEL, --display3d=MODEL
	   Choose how molecules are displayed.	MODEL can be one of "BallnStick" (default), "SpaceFill".

       -?, --help
	   Show application help options.

       --help-all, --help-*
	   Print all or just a group of help options. These options are not documented here. Instead see gtk-options(7) and gnome-options(7).

       -v, --version
	   Print gchem3d version information.

SEE ALSO

       gnome-options(7), gtk-options(7)

AUTHORS

       Jean Brefort <jean.brefort@normalesup.org>
	   Program author.

       Daniel Leidert <daniel.leidert@wgdd.de>
	   Manpage author.

COPYRIGHT

       Copyright (C) 2002-2007 Jean Brefort
       Copyright (C) 2004-2007 Daniel Leidert

       Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 or any
       later version published by the Free Software Foundation.

gcu 0.12				      $Date: 2009-03-19 10:53:47 +0100 (jeu. 19 mars 2009) $					GCHEM3D(1)
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