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Full Discussion: How join works and the specific parameters to my problem?
Homework and Emergencies Homework & Coursework Questions How join works and the specific parameters to my problem? Post 302413164 by Lechnology on Wednesday 14th of April 2010 06:54:31 PM
Old 04-14-2010
Quote:
Originally Posted by methyl
All four of the sample commands posted contain logic errors, syntax errors, or typing errors?
Are you asking is there any error output? I've done that with a 2>error.txt, and it was blank. I don't think there's any logic, syntax or typing error as I've followed the book (Tansley) and examples I've found online explaining join.
Quote:
On the off-chance .... have any of the data files been copied from a Microsoft Operating System?
The original data files were Excel files that the campus generated. We converted the files to CSV before extracting the information. So I only know as far as downloading the file?

So this is what I've done. Course2.txt and Grades2.txt have the 4 sample entries posted.

Quote:
10015|GEOL |158|NATURAL DISASTERS|Rezaie Boroon Mohammad Hassan|
10016|GEOL |158|NATURAL DISASTERS|Hamane Angelique C.|
10020|ART | 101A |WORLD ART|Anderson Paul A|
10021|ART | 101B |WORLD ART|Aguilar-Moreno Jose Manuel|
Quote:
10015|GEOL|158|1.64|2|2|1|7|2|11|26|9|17|12|5|13|||1|
10016|GEOL|158|1.93|13||3|19||3|40|1||9||22|||1|2
10020|ART|101A|1.19|8|5|1|16|7|7|11|8|3|13|6|77||||13
10021|ART|101B|2.59|38|19|15|17|9|8|16|4|4|9|5|12||||3
Code:
join -t"|" -o 1.1 1.2 1.3 1.4 1.5 2.4 ~/Lab1/Courses2.txt ~/Lab1/Grades2.txt > Merged.txt

more Merged.txt

Nothing.
Code:
join -t"|" -o'1.1 1.2 1.3 1.4 1.5 2.4' ~/Lab1/Courses2.txt  ~/Lab1/Grades2.txt > Merged.txt

more Merged.txt

Nothing.
Code:
join -t"|" -o '1.1 1.2 1.3 1.4 1.5 2.4'  ~/Lab1/Courses2.txt  ~/Lab1/Grades2.txt > Merged.txt

more Merged.txt

Nothing.

If it works for you guys, I am stumped.
 

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LEARN ABOUT CENTOS

processcsv.py

PROCESSCSV.PY(1)					      Virtualization Support						  PROCESSCSV.PY(1)

NAME

       processcsv.py - process virt-top CSV files

SUMMARY

	virt-top --csv data.csv
	processcsv.py < data.csv

DESCRIPTION

       virt-top is a top(1)-like utility for showing stats of virtualized domains.

       processcsv.py is a simple Python script that post-processes the output of "virt-top --csv".

       It is used like this:

	virt-top --csv data.csv
	processcsv.py < data.csv

       The second command will overwrite the following files in the current directory:

       "global.csv"
	   This contains the global (host) statistics columns from the CSV file.

       "domainNN.csv" (multiple files)
	   For each libvirt domain ID NN, a file is created containing the per-domain statistics from the CSV file.

SEE ALSO

       virt-top(1)

AUTHORS

       Richard W.M. Jones <rjones @ redhat . com>

COPYRIGHT

       (C) Copyright 2007-2012 Red Hat Inc., Richard W.M. Jones http://libvirt.org/

       This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
       the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation,
       Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

virt-top-1.0.8							    2013-12-29							  PROCESSCSV.PY(1)
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