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Top Forums UNIX for Advanced & Expert Users Replace columns in .csv using other .csv columns Post 302952044 by Scrutinizer on Thursday 13th of August 2015 02:29:19 AM
Old 08-13-2015
Try:
Code:
awk 'NR==FNR{A[q $1 q]=q $2 q; next} $1 in A{$9=A[$1]}1' q=\" FS=, OFS=, GoodImages.csv Daily.csv > output

The trouble with csv format like that is that it allows al kinds of exceptions. A complication for example would be if there can be commas within the quotes, particular field #3, which would mess up the field numbers. This could be mitigated by counting from back to front (since that last values are numerical with a dot a decimal separator and no thousands separators), so:
Code:
awk 'NR==FNR{A[q $1 q]=q $2 q; next} $1 in A{$(NF-4)=A[$1]}1' q=\" FS=, OFS=, GoodImages.csv Daily.csv > output

Technically the URL's could also contain commas. If that may be the case, then it will be more complex to make this reliable. Another problem could be if there are double quotes within the double quotes. If that will not be the case then this might be enough..

Last edited by Scrutinizer; 08-13-2015 at 03:34 AM..
 

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Text::CSV::Encoded::Coder::EncodeGuess(3pm)		User Contributed Perl Documentation	       Text::CSV::Encoded::Coder::EncodeGuess(3pm)

NAME
Text::CSV::Encoded::Coder::EncodeGuess - Text::CSV::Encoded coder class using Encode::Guess SYNOPSIS
use Text::CSV::Encoded coder_class => 'Text::CSV::Encoded::Coder::EncodeGuess'; use Spreadsheet::ParseExcel; my $csv = Text::CSV::Encoded->new(); $csv->encoding( ['ucs2', 'ascii'] ); # guessing ucs2 or ascii? $csv->encoding_to_combine('shiftjis'); my $excel = Spreadsheet::ParseExcel::Workbook->Parse( $file ); my $sheet = $excel->{Worksheet}->[0]; for my $row ( $sheet->{MinRow} .. $sheet->{MaxRow} ) { my @fields; for my $col ( $sheet->{MinCol} .. $sheet->{MaxCol} ) { my $cell = $sheet->{Cells}[$row][$col]; push @fields, $cell->{Val}; } $csv->combine( @fields ) or die; print $csv->string, " "; } DESCRIPTION
This module is inherited from Text::CSV::Encoded::Coder::Encode. USE
Except for 2 attributes, same as Text::CSV::Encoded::Coder::Encode. encoding_in $csv = $csv->encoding_in( $encoding_list_ref ); The accessor to an encoding for pre-parsing CSV strings. If no encoding is given, returns current $encoding, otherwise the object itself. $encoding_list_ref = $csv->encoding_in() When you pass a list reference, it might guess the encoding from the given list. $csv->encoding_in( ['shiftjis', 'euc-jp', 'iso-20022-jp'] ); If it cannot guess the encoding, the first encoding of the list is used. encoding $csv = $csv->encoding( $encoding_list_ref ); $encoding_list_ref = $csv->encoding(); You can pass a list reference to this attribute only: * For list data consumed by combine(). * For list reference returned by getline(). In other word, in "combine" and "print", it might guess an encoding for the passing list data. If it cannot guess the encoding, the first encoding of the list is used. SEE ALSO
Encode, Encode::Guess AUTHOR
Makamaka Hannyaharamitu, <makamaka[at]cpan.org> COPYRIGHT AND LICENSE
Copyright 2008-2010 by Makamaka Hannyaharamitu This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2010-04-26 Text::CSV::Encoded::Coder::EncodeGuess(3pm)
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