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Full Discussion: Extract date and time part from filename
Top Forums UNIX for Beginners Questions & Answers Extract date and time part from filename Post 303033661 by RudiC on Wednesday 10th of April 2019 04:52:22 AM
Old 04-10-2019
This is not easy a request, both to understand and to implement. I have understood that you want to search two input fields, $4 and $5, for date/Ttime format descriptors, and append their metadata to the line. Additional data that shows up in your desired output, as ......, |0|0|, or %Y%m%d are even harder to implement as specified. Try this a a first starting point:


Code:
awk -F"|" '
BEGIN   {MXFM = split ("YYYYMMDD|YYMMDD|HHMISS", FMT)
        }

        {printf "%s", $0
         for (j=4; j<=5; j++)   {TMP = $j
                                 PTR = 0
                                 for (i=1; i<=MXFM; i++) if (match (TMP, FMT[i]))       {printf "|%s|%s|%s|...", PTR + RSTART, RLENGTH, substr (TMP, RSTART, RLENGTH)
                                                                                         TMP = substr (TMP, RSTART+RLENGTH)
                                                                                         PTR += RSTART + RLENGTH - 1
                                                                                        }
                                }
         print ""
        }
'  OFS="|" file
SOURCE|LOGIN|SERVER|ABC_123_YYYYMMDD_V01P1234YYMMDDHHMISS.txt|ABC_123_V01P.YYYYMMDD.HHMISS.txt|CATEGORY|9|8|YYYYMMDD|...|26|6|YYMMDD|...|32|6|HHMISS|...|14|8|YYYYMMDD|...|23|6|HHMISS|...

and see how far it gets you.
This User Gave Thanks to RudiC For This Post:
Prathmesh
 

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LEARN ABOUT LINUX

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

5.07								    06/23/2009							      EXTRACTOR(1)
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