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Full Discussion: Code to get unique values
Top Forums UNIX for Beginners Questions & Answers Code to get unique values Post 303017157 by RavinderSingh13 on Thursday 10th of May 2018 06:26:06 AM
Old 05-10-2018
Quote:
Originally Posted by nextStep
Hello Ravinder,
That code worked, much thanks. Pasting the output below.
Code:
 zgrep -B1 "Failed to calculate US Tax" logFile  | zgrep "CartService" |awk 'match($0,/UA:MP:[a-zA-Z]+[0-9]+/) && !a[substr($0,RSTART,RLENGTH)]++{print substr($0,RSTART,RLENGTH)}'
UA:MP:HR722540
UA:MP:EG359458

Could you please explain the logic you have used above.
Hello nextStep,

Following is the explanation may help you on same.

Code:
awk '
match($0,/UA:MP:[a-zA-Z]+[0-9]+/) && !a[substr($0,RSTART,RLENGTH)]++{  ##Using match utility of awk to match REGEX UA:MP: alphabets till all occurrences then till all digits all occurrences AND(condition) to check if array a should NOT have index of substring of RSTART and RLENGTH variables then print substring of that line whose starting point is value of RSTART and final points RLENGTH.
   print substr($0,RSTART,RLENGTH)                                     ##Printing the substring whose value starts from RSTART to RLENGTH values.
}'  Input_file                                                                      ##Mentioning Input_file name here.

Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
nextStep
 

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LEARN ABOUT DEBIAN

qrencode

QRENCODE(1)						      General Commands Manual						       QRENCODE(1)

NAME

       qrencode - Encode input data in a QR Code and save as a PNG or EPS image.

SYNOPSIS

       qrencode [OPTION]...  [STRING]

DESCRIPTION

       Libqrencode  is	a  library  for encoding data in a QR Code symbol, a kind of 2D symbology that can be scanned by handy terminals such as a
       mobile phone with CCD. The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.

       Qrencode is a utility software using libqrencode to encode string data in a QR Code and save as a PNG or EPS image.

OPTIONS

       -h, --help
	      display help message.

       -o FILENAME, --output=FILENAME
	      write image to FILENAME. If '-' is specified, the result will be output to standard output. If -S is given, structured  symbols  are
	      written to FILENAME-01.png, FILENAME-02.png, ... (suffix is removed from FILENAME, if specified)

       -s NUMBER, --size=NUMBER
	      specify the size of dot (pixel). (default=3)

       -l {LMQH}, --level={LMQH}
	      specify error collectin level from L (lowest) to H (highest). (default=L)

       -v NUMBER, --symversion=NUMBER
	      specify the version of the symbol. (default=auto)

       -m NUMBER, --margin=NUMBER
	      specify the width of margin. (default=4)

       -d NUMBER, --dpi=NUMBER
	      specify the DPI of the generated PNG. (default=72)

       -t {PNG,EPS,ANSI,ANSI256}, --type={PNG,EPS,ANSI,ANSI256}
	      specify the type of the generated image. (default=PNG)

       -S, --structured
	      make structured symbols. Version must be specified.

       -k, --kanji
	      assume that the input text contains kanji (shift-jis).

       -c, --casesensitive
	      encode lower-case alphabet characters in 8-bit mode. (default)

       -i, --ignorecase
	      ignore case distinctions and use only upper-case characters.

       -8, --8bit
	      encode entire data in 8-bit mode. -k, -c and -i will be ignored.

       -M, --micro
	      encode in a Micro QR Code. (experimental)

       -V, --version
	      display the version number and copyrights of the qrencode.

       [STRING]
	      input data. If it is not specified, data will be taken from standard input.

EXAMPLES

       qrencode -l L -v 1 -o output.png 'Hello, world!'
	      encode into a symbol version 1, level L.

       qrencode -iSv 1 --output=output.png
	      read standard input and encode it into a structured-appended symbols in case-insensitive mode.

AUTHOR

       Written by Kentaro Fukuchi.

RESOURCES

       Main Web Site: http://fukuchi.org/works/qrencode/

       Source code repository: https://github.com/fukuchi/libqrencode/

COPYRIGHT

       Copyright (C) 2006-2012 Kentaro Fukuchi.

qrencode 3.3.0							   Feb. 29, 2012						       QRENCODE(1)
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