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Top Forums Shell Programming and Scripting Script to match strings that sometimes are splitted in 2 lines Post 302846711 by Ophiuchus on Sunday 25th of August 2013 01:21:38 PM
Old 08-25-2013
Hello Scrutinizer,

Thanks, it works that way.

The pat2 could be in more than line, so to could use your code, intead of have 32 elements in a line I changed it to 64 with xxd command, and without spaces.

So, your first code continue working, but I don't know why is not printing all patterns even they are in the file, I got this output:
Code:
$ awk -v pat="ff44.{6,18}321456.{5}" '
  {    b=p $0  }
  match(b,pat) {    print substr(b,RSTART,RLENGTH); sub(pat,x)
  }
  {    p=$0 FS  }' file2.txt
ff4400000232145601757
ff4400000332145601766
ff4400000432145601789

But the correct output should be (the patterns that have the sequence 01 and 05 are not being printed):
Code:
ff4400000132145600238
ff4400000232145601757
ff4400000332145601766
ff4400000432145601789
ff4400000532145601788

The input file is:
Code: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Thanks in advance for the help.
 
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ppmtosixel(1)						      General Commands Manual						     ppmtosixel(1)

NAME
ppmtosixel - convert a portable pixmap into DEC sixel format SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC LJ250 color inkjet printer. If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file. OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com- pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni- tude larger than a compressed file and prints much slower. -margin If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci- fied, a 1.5 inch left margin will offset the image. PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?. BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation. SEE ALSO
ppm(5) AUTHOR
Copyright (C) 1991 by Rick Vinci. 26 April 1991 ppmtosixel(1)

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