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Top Forums Shell Programming and Scripting Date format change in a csv file Post 302948962 by Don Cragun on Sunday 5th of July 2015 04:04:23 AM
Old 07-05-2015
Hi Smiling Dragon, cfajohnson, Scrutinizer, & Aia,
If you look closely at the 1st post in this thread, you'll notice that the request is to find timestamps in unspecified fields in a CSV formatted file where the input timestamps are in the format MM/DD/YYYY HH:MM:SS and the output timestamps are supposed to be one month later in the format DD/Mon/YYYY HH:MM:SS.

So, there is no reason to believe that using / as a field separator on an input line will yield only three fields, that the first field will just contain a month number, nor that the third field will only contain a year and a timestamp. None of the code suggested so far makes any attempt to adjust the output month, to adjust the day field if the output month has fewer days than the input month, nor to adjust the year if the input month is 12.

Three days ago (less than an hour after the original post), I asked the submitter to provide us with more details and to show us what had been tried to solve this problem. I figured that the code that would be shown to us would clarify if the conversion from month number 06 to abbreviated month name Jul was intentional or a typo, would clarify if the field separator in the CSV file format was a comma or some other character, and would clarify whether every input field needed to be processed or if only certain fields need to be processed. Unfortunately, I am still waiting for a response.
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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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