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Full Discussion: Extract lines if string found from last 30 min only
Top Forums UNIX for Beginners Questions & Answers Extract lines if string found from last 30 min only Post 303030518 by nezabudka on Tuesday 12th of February 2019 10:17:21 AM
Old 02-12-2019
Errors may occur with this key.
%_d
better try to change the format in the log and use %d
If the information is collected in a several days

--- Post updated at 14:28 ---

Code:
awk -v d="$(LANG=C date -d -30minutes -u +"%b %_d, %Y, %T,%3N %p %Z")" -F "<|>" '($2 > d) {print}' file

--- Post updated at 14:33 ---

some nanoseconds in the log have 2 digits?

--- Post updated at 15:03 ---

cut off nanoseconds
Code:
awk -v d="$(LANG=C date -d -30minutes -u +"%b %_d, %Y, %T")" -F "<|>" '
(gensub(/,[^,]*$/, "", 1, $2) > d)      {print}
' file

--- Post updated at 15:17 ---

may be PM and UTC need to save?
than:
Code:
date -d -30minutes -u +"%b %_d, %Y, %T %p %Z"
gensub(/(,[0-9]+ )([^,]*)$/, " \\2", 1, $2)

Last edited by nezabudka; 02-12-2019 at 02:01 PM..
These 2 Users Gave Thanks to nezabudka For This Post:
Neo RudiC
 

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LEARN ABOUT DEBIAN

extractor

EXTRACTOR(1)						  The Canonical Csound Reference					      EXTRACTOR(1)

NAME

       extractor - Extract a section of audio from an audio file. .

DESCRIPTION

       Extract a section of audio, by time or sample, from an existing sound file.

SYNTAX

	   extractor [OPTIONS ... ] infile

INITIALIZATION

       Flags:

       o   -S integer = Start the extract at the given sample number.

       o   -Z integer = End the extract at the given sample number.

       o   - Q integer = Extract given number of samples.

       o   -T fpnum = Start the extract at the given time in seconds.

       o   -E fpnum = End the extract at the given time in seconds.

       o   -D fpnum = Extract given time in seconds.

       o   -v = Verbose mode.

       o   -R = Continually rewrite the header while writing soundfile (WAV/AIFF).

       o   -H integer = Show a "heart-beat" to indicate progress, in style 1, 2 or 3.

       o   -N = Alert call (usually ringing the bell) when finished.

       o   -v = Verbose mode.

       o   -o fname = output file name (default: test.wav)

EXAMPLES

       The default values are

	       extractor -S 0 -Z end-of-file -otest

       For example

	       extractor -S 10234 -D 2.13 in.aiff -o out.wav

       This creates a new sound file taken from sample 10234 and lasting 2.13 seconds.

CREDITS

       Author: John ffitch

       1994

AUTHORS

       Barry Vercoe
       MIT Media Lab

	   Author.

       Dan Ellis
       MIT Media Lab,
		 Cambridge
		 Massachussetts

	   Author.

COPYRIGHT

5.10								    08/01/2011							      EXTRACTOR(1)
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