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Top Forums Shell Programming and Scripting How to extract start/end times from log file to CSV file? Post 302926298 by Mr.Zizo on Saturday 22nd of November 2014 11:56:12 PM
Old 11-23-2014
How to extract start/end times from log file to CSV file?

Hi,

I have a log file (log.txt) that which contains lines of date/time.
I need to create a script to extract a CSV file (out.csv) that gets all the sequential times (with only 1 minute difference) together by stating the start time and end time of this period.


Sample log file (log.txt)
Code:
14-11-2014 05:23
14-11-2014 05:24
14-11-2014 05:25
14-11-2014 05:26
16-11-2014 13:01
16-11-2014 13:02
16-11-2014 13:03
23-11-2014 03:00
23-11-2014 05:24
23-11-2014 05:25

The CSV out file should look something like the below:
Code:
14-11-2014 05:23,14-11-2014 05:26,4
16-11-2014 13:01,16-11-2014 13:03,3
23-11-2014 03:00,23-11-2014 03:00,1
23-11-2014 05:24,23-11-2014 05:25,2

The first column of each line is the start time, the second column is the end time, and the third column is the number of minutes between the start and end times.

Would you please help me in this?

Thanks in advance.

Zizo
 

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MYSQL_FIND_ROWS 					       MySQL Database System						   MYSQL_FIND_ROWS

NAME
mysql_find_rows - extract SQL statements from files SYNOPSIS
mysql_find_rows [options] [file_name ...] DESCRIPTION
mysql_find_rows reads files containing SQL statements and extracts statements that match a given regular expression or that contain USE db_name or SET statements. The utility expects statements to be terminated with semicolon (;) characters. Invoke mysql_find_rows like this: shell> mysql_find_rows [options] [file_name ...] Each file_name argument should be the name of file containing SQL statements. If no file names are given, mysql_find_rows reads the standard input. Examples: mysql_find_rows --regexp=problem_table --rows=20 < update.log mysql_find_rows --regexp=problem_table update-log.1 update-log.2 mysql_find_rows supports the following options: o --help, --Information Display a help message and exit. o --regexp=pattern Display queries that match the pattern. o --rows=N Quit after displaying N queries. o --skip-use-db Do not include USE db_name statements in the output. o --start_row=N Start output from this row. COPYRIGHT
Copyright (C) 1997, 2014, Oracle and/or its affiliates. All rights reserved. This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This documentation 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 the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/. SEE ALSO
For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online at http://dev.mysql.com/doc/. AUTHOR
Oracle Corporation (http://dev.mysql.com/). MySQL 5.5 01/30/2014 MYSQL_FIND_ROWS
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