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Full Discussion: Select Distinct on multiple fields
Top Forums UNIX for Dummies Questions & Answers Select Distinct on multiple fields Post 302360309 by Refresher on Thursday 8th of October 2009 03:05:27 PM
Old 10-08-2009
Lightbulb Select Distinct on multiple fields
How do I create a script that provides a count of distinct values of a particular field in a file utilizing commonly available UNIX commands (sh or awk)?

Field1|Field2|Field3|Field4
AAA|BBB|CCC|DDD
111|222|333|777
AAA|EEE|ZZZ|EEE
111|555|333|444
AAA|EEE|CCC|DDD
111|222|555|444

For the above file, the result I am looking for would be:

Field1
AAA(3)
111(3)
Field2
BBB(1)
222(2)
EEE(2)
555(1)
Field3
ccc(2)
333(2)
zzz(1)
555(1)
Field4
DDD(2)
777(1)
EEE(1)
444(2)

Thank you in advance for your assistance.
 

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LEARN ABOUT DEBIAN

rdf::query::plan::distinct

RDF::Query::Plan::Distinct(3pm) 			User Contributed Perl Documentation			   RDF::Query::Plan::Distinct(3pm)

NAME

       RDF::Query::Plan::Distinct - Executable query plan for Distincts.

VERSION

       This document describes RDF::Query::Plan::Distinct version 2.908.

METHODS

       Beyond the methods documented below, this class inherits methods from the RDF::Query::Plan class.

       "new ( $plan )"
       "execute ( $execution_context )"
       "next"
       "close"
       "pattern"
	   Returns the query plan that will be used to produce the data to be made distinct.

       "distinct"
	   Returns true if the pattern is guaranteed to return distinct results.

       "ordered"
	   Returns true if the pattern is guaranteed to return ordered results.

       "plan_node_name"
	   Returns the string name of this plan node, suitable for use in serialization.

       "plan_prototype"
	   Returns a list of scalar identifiers for the type of the content (children) nodes of this plan node. See RDF::Query::Plan for a list of
	   the allowable identifiers.

       "plan_node_data"
	   Returns the data for this plan node that corresponds to the values described by the signature returned by "plan_prototype".

       "graph ( $g )"

AUTHOR

	Gregory Todd Williams <gwilliams@cpan.org>

perl v5.14.2							    2012-01-31					   RDF::Query::Plan::Distinct(3pm)
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