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Full Discussion: removing lines with similar values from file
Top Forums Shell Programming and Scripting removing lines with similar values from file Post 302603534 by ygemici on Thursday 1st of March 2012 09:11:46 AM
Old 03-01-2012
Code:
# awk '{a[x++]=$0};END{for(i=0;i<x;i=i++){f=i;split(a[i],b);i++;split(a[i],c)
if(b[2]b[5]==c[2]c[5]){
if(c[4]-b[4]<15&&c[4]-b[4]>0)
{delete a[i];d=i}
if(b[4]-c[4]<15&&b[4]-c[4]>0)
{delete a[f];d=f}else if(x!=i)print a[f]
}
else
if(d!=f||!d)print a[f]
}}' infile
33274   171030  02/29/2012      37897   P_GEH   2012-02-29 10:31:26
33275   171049  02/29/2012      38132   P_GEH   2012-02-29 10:35:27
33276   171058  02/29/2012      38515   P_GEH   2012-02-29 10:43:26
33277   170748  02/29/2012      40685   P_KOM   2012-02-29 11:19:27
33278   170053  02/29/2012      41704   P_GEH   2012-02-29 11:35:27
33279   171042  02/29/2012      41983   P_GEH   2012-02-29 11:39:27
33280   170343  02/29/2012      42740   P_KOM   2012-02-29 11:55:27
33281   171030  02/29/2012      44042   P_KOM   2012-02-29 12:15:27
33283   170748  02/29/2012      45453   P_GEH   2012-02-29 12:39:27
33284   170281  02/29/2012      45608   P_KOM   2012-02-29 12:43:26

Last edited by ygemici; 03-01-2012 at 11:04 AM.. Reason: correction about if the process is last line of input file
 

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LEARN ABOUT REDHAT

ppmtosixel

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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