Code help Post: 302815031

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Top Forums Shell Programming and Scripting Code help Post 302815031 by Yoda on Thursday 30th of May 2013 09:26:49 PM

05-30-2013

Moderator

If you are referring to this post by me, here is the explanation:

Code:

SEQ=45654

awk -v S="$SEQ" '                                       # Set S = $SEQ
        $0 == S {                                       # Check if current record $0 == S
                V = $0                                  # Set V = $0 ( current record )
                getline                                 # Get next record
                if ( $0 == 199 )                        # Check if current record $0 == 199
                {
                        getline                         # Get next record
                        if ( $0 == 225 )                # Check if current record $0 == 225
                        {
                                print V RS "258"        # Print V RS (special awk variable - newline by default) "258"
                                next                    # Skip processing current record
                        }
                        else                            # If current record $0 != 255
                        {
                                print V RS "199" RS $0  # Print V RS "199" RS $0
                                next                    # Skip processing current record
                        }
                }
                else                                    # If current record $0 != 199
                {
                        print V RS $0                   # Print V RS $0
                        next                            # Skip processing current record
                }
        }
        $0 != S {                                       # Check if current record $0 != $0
                print $0                                # Print $0 ( current record )
        }
' file

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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)