No changes necessary with dateutils approach. Here are the results from running the script in post #4 for differing days in differing months in differing years:
Code:
$ ./s1 data3
Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 3.16.0-4-amd64, x86_64
Distribution : Debian 8.6 (jessie)
bash GNU bash 4.3.30
dateutils.dconv dconv 0.3.1
dateutils.ddiff ddiff 0.3.1
-----
Input data file data3:
2016-01-01 00:00:01 INFO: [D3B4AEB3] id: 4562079193, time: 2015-12-31 23:59:58, lat: 51.00000, lon: -112.00000, speed: 64.3, course: 130.0
2016-01-01 00:00:01 INFO: [D3B4AEB3] id: 4562079193, time: 2015-12-31 23:59:40, lat: 51.00000, lon: -112.00000, speed: 64.3, course: 130.0
-----
Results:
db, reference is :2016-01-01T00:00:01:, other is :2015-12-31T23:59:58:
db, Difference in time is :-3:
db, absolute value of :-3: is :3:
db, reference is :2016-01-01T00:00:01:, other is :2015-12-31T23:59:40:
db, Difference in time is :-21:
db, absolute value of :-21: is :21:
2016-01-01 00:00:01 INFO: [D3B4AEB3] id: 4562079193, time: 2015-12-31 23:59:40, lat: 51.00000, lon: -112.00000, speed: 64.3, course: 130.0
Lets say I have a file containing string patterns to be looked for inside a file.
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LEARN ABOUT OSX
svk::log::filter::grep
SVK::Log::Filter::Grep(3) User Contributed Perl Documentation SVK::Log::Filter::Grep(3)SYNOPSIS
SVK::Log::Filter::Grep - search log messages for a given pattern
DESCRIPTION
The Grep filter requires a single Perl pattern (regular expression) as its argument. The pattern is then applied to the svn:log property
of each revision it receives. If the pattern matches, the revision is allowed to continue down the pipeline. If the pattern fails to
match, the pipeline immediately skips to the next revision.
The pattern is applied with the /i modifier (case insensitivity). If you want case-sensitivity or other modifications to the behavior of
your pattern, you must use the "(?imsx-imsx)" extended pattern (see "perldoc perlre" for details). For example, to search for log messages
that match exactly the characters "foo" you might use
svk log --filter "grep (?-i)foo"
However, to search for "foo" without regards for case, one might try
svk log --filter "grep foo"
The result of any capturing parentheses inside the pattern are not available. If demand dictates, the Grep filter could be modified to
place the captured value somewhere in the stash for other filters to access.
If the pattern contains a pipe character ('|'), it must be escaped by preceding it with a '' character. Otherwise, the portion of the
pattern after the pipe character is interpreted as the name of a log filter.
STASH /PROPERTY MODIFICATIONS
Grep leaves all properties and the stash intact.
perl v5.10.0 2008-08-04 SVK::Log::Filter::Grep(3)