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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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DM_ZDUMP(1)						User Contributed Perl Documentation					       DM_ZDUMP(1)

NAME
dm_zdump - timezone dumper SYNOPSIS
This performs the same operation as the unix 'zdump' command, but using the Date::Manip module. dm_zdump [-v] [-c YEAR] [ZONE ZONE ...] DESCRIPTION
This displays the current time in each ZONE named on the command line unless the -v option is given. -h, --help Print online help. -v, --verbose This displays all critical dates (i.e. the times when a time change occurs due to the timezone description) for each of the timezones listed (or the local timezone if none are listed). Each critical date is printed as two lines of output: the last second before the change occurs, and the first second of the new time. By default, all critical dates from Jan 1, 0001 until the year 20 years in the future are printed, but this can be changed with the -c option. -c, --cutoff YEAR This specifies the cutoff year. All critical dates up to the start of YEAR are given. The GMT time Jan 01, YEAR at 00:00:00 is the cutoff time. KNOWN BUGS
None known. BUGS AND QUESTIONS
Please refer to the Date::Manip::Problems documentation for information on submitting bug reports or questions to the author. SEE ALSO
Date::Manip::Date LICENSE
This script is free software; you can redistribute it and/or modify it under the same terms as Perl itself. AUTHOR
Sullivan Beck (sbeck@cpan.org) perl v5.16.3 2014-06-09 DM_ZDUMP(1)
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