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Full Discussion: Filter uniq field values (non-substring)
Top Forums Shell Programming and Scripting Filter uniq field values (non-substring) Post 302900765 by yifangt on Thursday 8th of May 2014 02:11:35 PM
Old 05-08-2014
You are right: If i is in a, you jump to the next line. That's wrong. ... before you can skip a line, both i must be in a and j must be in b. ...Was there some copy-paste malfunction in your post?Sorry for that!

This part is not what I want:
One simple, if not optimal, way to solve the problem is to handle each column individually and then join the results.
My logic is only if i in a is substring of $2 and j in b is substring of $4 at the same time, that line should be skipped. Delete a[i] will skip the whole line as a[$2]=$0. If $2 and $4 are handled separately before joined later, some lines are deleted but should not! For example:
Code:
1 abcd    idx01    ijklm 
2 abc    idx03    klm 
3 abcd    idx05    jkl
...
9 abcd    idx05   abcd

Line 9 should not be deleted even $2 is identical to that in Line 1, as $4 at Line 9 is not a substring of $4 in Line 1! No cross comparing between $2 and $4! I thought of combine the two columns to have a single one, which does not work either obviously, as not all the string start with the same char to have substring. I have hard time to catch array in awk. Thanks a lot!
Last edited by yifangt; 05-08-2014 at 03:18 PM..
 

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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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