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Top Forums Shell Programming and Scripting I am trying to merge all csv files from source path into 1 file Post 302974974 by cplusplus1 on Monday 6th of June 2016 08:55:53 PM
Old 06-06-2016
I am trying to merge all csv files from source path into 1 file

I am trying to merge all csv files from source path into one single csv file in target. but getting error message:
Code:
hadoop fs -cat /user/hive/warehouse/stage.db/PK_CLOUD_CHARGE/TCH-charge_*.csv > /user/hive/warehouse/stage.db/PK_CLOUD_CHARGE/final/TCH_pb_charge.csv

getting error message:
Code:
-bash no such file exists at this path: /user/hive/warehouse/stage.db/PK_CLOUD_CHARGE/final/TCH_pb_charge.csv

I have 11 csv files in the first path, now thinking the above command will automatically merge all 11 csv files into 1 csv file.

I tried to use this command also is this a proper merge command line with csv files into 1 single csv file.
Code:
hadoop fs -text /user/hive/warehouse/stage.db/PK_CLOUD_CHARGE/TCH-charge_*.csv | hadoop fs -put - /user/hive/warehouse/stage.db/PK_CLOUD_CHARGE/final/TCH_pb_charge.csv

Thanks a lot for the helpful info.
Moderator's Comments:
Mod Comment As has been said many times before:
Use CODE tags to display full-line and multi-line sample input, sample output, and code segments.
Do Not use ICODE tags to display full-line and multi-line sample input, sample output, and code segments.
Use ICODE tags to display partial-line sample input, sample output, and code segments as part of in-line text.

Last edited by Don Cragun; 06-07-2016 at 01:24 AM.. Reason: Change ICODE tags to CODE tags, add missing CODE tags.
 

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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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