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Full Discussion: Find key pattern and print selected lines for each record
Top Forums Shell Programming and Scripting Find key pattern and print selected lines for each record Post 302943862 by redse171 on Wednesday 13th of May 2015 11:11:30 AM
Old 05-13-2015
Find key pattern and print selected lines for each record
Hi,

I need help on a complicated file that I am working on. I wanted to extract important info from a very huge file. It is space delimited file. I have hundred thousands of records in this file. An example content of the inputfile as below:-

Code:
##
ID    Ser402             Old;         23 mins .
ACC   P669GM;
DAT   MAY-2014, the old episode.
TOS   Japanes Anime. one piece
TMA   Pirates; animation; cartoon.
POT   DownloadID=5445;
HEW   StreamID=792; watchop (eu).
HEW   AnotherOnlineID=823; narutowire (same).
COM   -@- Simple Comment: Ace died and Luffy is miserable. 
COM      None of his nakama was with him {SOV:000250}.
COM   -@- Full Comment: Host channel {SOV:000305}; Multi-chanel
COM      streaming {SOV:000305}.
COM   -@- Another Comment: Belongs to the same server.
COM      {SOV:000305}.
COM  -----------------------------------------------------------------------
COM   Can be watched online, see http://www.watchop.eu
DOR   Data; packet; -; Unknown; Anime.
DOR   TDP; TDP:0034; PPQ:host for sub channel; ASA:Subchannel.
DOR   TDP; TDP:0021; PPQ:internal channel; ASA:Unknown.
PPE   Torrent unapplicable;
KAW   Complete episode; Early release; Host channel;
KAW   Repeat; subchannel; subchannel host.
FEA   link          1    20         unavailable
FEA                                /F3184.
FEA   TOP_CHAN      1      1       unavailable (will be determined).
FEA   SUBCHAN       2      18      at 9 (confirmed!).
FEA   TOP_CHAN      19     117     unavailable (No info).
FEA   SUBCHAN       118    138     at 10 (confirmed!).
FEA   TOP_CHAN      139    145     unavailable (will be determined).
FEA   SUBCHAN       146    166     at 12 (confirmed!).
FEA   TOP_CHAN      167    269     unavailable (the source is unknown).
FEA   REP           1      146     A.
FEA   CAD           75     75      by host.
FEA                                {undetermined}.
SYN   synopsis for this episode is unavailable.
##
ID    MOV10               NewMov;         90 mins.
ACC   PPDFB1;
TOS   Japanes Anime. Naruto shippuden
TMA   Ninja; shinobi, konoha; hokage; Pain.
CC    Distributed under the Creative License
CC   -----------------------------------------------------------------------
DOR   Data; packet; -; Unknown; Anime movie.
DOR   movie; new movie; 90 mins only
DOR   MOVID; 299; -.
DOR   MOV3D; -; 1.
PPE   10; torrent
KAW   new movie; Complete movie.
FEA   Null         1    683        Unknown
FEA                                /F82.
FEA   mov       62    124       (SOV:005).
FEA   mov      155    259       (SOV:005).
FEA   mov      346    376       (SOV:025).
SYN   In this episode, Dresrossa has been surrounded by a cage known as birdcage by doflamingo.
      Luffy is moving towards the palace to defeat Doflamingo. 
##

All the records in this file are separated by “##”. What I need is an output that only shows the needed info based on matched patterns “ subchannel or subchannel host” in KAW line. In the example input, only the first records has this patterns. Then, the output should be like below:-

Code:
##
ID       Ser402
ACC	  P669GM
TOS     Japanes Anime. one piece
TMA     Pirates; animation; cartoon.
COM    -@- Full Comment: Host channel {SOV:000305}; Multi-chanel
COM       streaming {SOV:000305}.
DOR     TDP; TDP:0034; PPQ:host for sub channel; ASA:Subchannel.
DOR     TDP; TDP:0021; PPQ:internal channel; ASA:Unknown.
KAW     Complete episode; Early release; Host channel;
KAW     Repeat; subchannel; subchannel host.
FEA      link          1    20         unavailable
FEA                                /F3184.
FEA      TOP_CHAN     1      1       unavailable (will be determined).
FEA      SUBCHAN       2      18      at 9 (confirmed!).
FEA      TOP_CHAN     19     117     unavailable (No info).
FEA      SUBCHAN       118    138     at 10 (confirmed!).
FEA      TOP_CHAN      139    145     unavailable (will be determined).
FEA      SUBCHAN        146    166     at 12 (confirmed!).
FEA      TOP_CHAN      167    269     unavailable (the source is unknown).
FEA      REP                    1      146     A.
FEA      CAD                   75     75      by host.
FEA                                                   {undetermined}.
TT        3
##

As shown above, for line starts with COM, I just want the one with -@-Full Comment and another COM line following it, if any (bold in blue color). I also need to print line DOR followed by TDP only (bold in red color). While, In the last line, there should be a new line created named as “TT” and the value following it is the total number of the occurrences of pattern “FEA SUBCHAN”.

I don't have any idea how to print only selected lines there. I used below codes to find the key pattern. But it will only print all the lines for the matched records. I just need selected lines as shown in the sample output above.

Code:
awk '/##/{if(l)print s;l=0;s=$0;next}/subchannel/{l=1}{s=s RS $0}END{if(l)print s}' inputfile

would appreciate your kind help. Thanks.
 

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