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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 302900881 by vgersh99 on Friday 9th of May 2014 09:38:11 AM
Old 05-09-2014
no-no, this is all good - no ill feelings here!
I see your point - and yes, we solved this case earlier - I need to revert to my previous code:
Code:
awk '{
      for(i=1;i<=c;i++) {
        if (!(i in a)) continue
        if (index(a[i],$2) && index(b[i],$4))
           next

        if (index($2, a[i]) && index($4,b[i])) {
           delete a[i]
           delete b[i]
           delete all[i]
        }
      }

      a[++c]=$2
      b[c]=$4
      all[c]=$0
   }
END {
   for (i=1; i<=c;i++) if (i in all) print all[i]
}' myFile

It's a bit ugly. If you have an improvement idea, I'd be grateful to see it as well.
Also I cannot think of an easy non-convoluted way to avoid a full scan of the already cached entries for every new record/line (in order to improve the performance)...

Thanks for staying on this thread!
Last edited by vgersh99; 05-09-2014 at 10:54 AM..
These 2 Users Gave Thanks to vgersh99 For This Post:
alister yifangt
 

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LEARN ABOUT DEBIAN

wiki-toolkit-revert-to-date

WIKI-TOOLKIT-REVERT-TO-DATE(1p) 			User Contributed Perl Documentation			   WIKI-TOOLKIT-REVERT-TO-DATE(1p)

NAME

       wiki-toolkit-revert-to-date - Revert the state of a Wiki::Toolkit instance to an earlier point in time.

SYNOPSIS

	 # Removes any changes made to a Wiki::Toolkit instance since a given date
	 #  (and optionally time), restoring it to the state at that point.

	 wiki-toolkit-revert-to-date --type postgres
		  --name mywiki 
		  --user wiki  
		  --pass wiki 
		  --host 'db.example.com' 
		  --port 1234 
		  --date 2007-01-05 
		  --time 11:23:21

DESCRIPTION

       Takes three mandatory arguments:

       type
	   The database type.  Should be one of 'postgres', 'mysql' and 'sqlite'.

       name
	   The database name.

       date
	   The date to revert the state back to, in the format YYYY-MM-DD

       five optional arguments:

       time
	   The time (on the specified date) to revert the state back to, in the format hh:mm:ss. If not specified, will use midnight.

       user
	   The user that connects to the database. It must have permission to create and drop tables in the database.

       pass
	   The user's database password.

       host
	   The hostname of the machine the database server is running on (omit for local databases).

       port
	   The port number that the database server is expecting connections to.

AUTHOR

       Nick Burch

COPYRIGHT

	    Copyright (C) 2006 Nick Burch.  All Rights Reserved.

       This code is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

       Wiki::Toolkit

perl v5.14.2							    2011-09-25					   WIKI-TOOLKIT-REVERT-TO-DATE(1p)
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