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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 302901365 by Scrutinizer on Tuesday 13th of May 2014 01:51:37 PM
Old 05-13-2014
Quote:
Originally Posted by vgersh99
[..]
If you have an improvement idea, I'd be grateful to see it as well.
[..]
Not really, but it could perhaps be reduced to something like this:
Code:
awk '
  {
    for(i in all) {
      if (index(a[i],$2) && index(b[i],$4)) next
      if (index($2,a[i]) && index($4,b[i])) delete all[i]
    }
    all[++c]=$0
    a[c]=$2
    b[c]=$4
  }

  END {
    for (i=1; i<=c; i++) if (i in all) print all[i]
  }
' file

This example does not delete the the a and b array elements, so less efficient with memory but a bit simpler code..
This User Gave Thanks to Scrutinizer For This Post:
yifangt
 

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LEARN ABOUT CENTOS

dellosig

DELLOSIG(3)						       MBK LOGICAL FUNCTIONS						       DELLOSIG(3)

NAME

       dellosig - delete a logical signal

ORIGIN

       This  software  belongs	to  the  ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in
       Paris, France.

       Web : http://asim.lip6.fr/recherche/alliance/
       E-mail : alliance-users@asim.lip6.fr

SYNOPSYS

       #include "mlo.h"
       int dellosig(ptfig, index)
       lofig_list *ptfig;
       long index;

PARAMETERS

       ptfig		   Pointer to the figure in which the signal should be deleted

       index		   Index of the signal to be deleted.

DESCRIPTION

       dellosig delete the signal that has index as INDEX in the figure pointed to by ptfig.  The list consistency is maintainded, and	the  space
       freed.

RETURN VALUE

       dellosig returns 1 if the signal has been deleted, 0 if the signal index does not exists in the list.

EXAMPLE

       #include "mlo.h"
       char *was_existing(ptfig, index)
       lofig_list *ptfig;
       long index;
       {
	  return dellosig(ptfig, index) ? "you just killed it!"
					: "wasn't here anyway";
       }

SEE ALSO

       mbk(1), lofig(3), losig(3), addlosig(3), getlosig(3).

BUG REPORT

       This tool is under development at the ASIM department of the LIP6 laboratory.
       We need your feedback to improve documentation and tools.

ASIM
/LIP6							  October 1, 1997						       DELLOSIG(3)
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