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Full Discussion: Read column values from previous and next line using awk
Top Forums Shell Programming and Scripting Read column values from previous and next line using awk Post 302708953 by Nishi_Licious on Tuesday 2nd of October 2012 12:23:23 PM
Old 10-02-2012
What I gave above is the output i want.

The input is like this:
Code:
       Key1              Key2              Key3       102                 30                   0       102   40   1       102   50   2       103   12   0       103   15   1

I need to add three new columns to the existing columns above and insert data into them from the column Key2.

The output is expected to look like this:
Code:
         Key1   Key2   Key3   New_Key1   New_Key2   New_Key3       102   30   0   -   -   -       102   40   1   30   40   50       102   50   2   40   50   30       103   12   0   -   -   -       103   15   1   12   15   12

The first row to any unique Key1, has New_Key1, New_Key2, New_Key3 dashed out. Now for the next row, the first value of Key2(in this case 30) becomes New Key1, the second value of Key2(40) fills in for New_Key2 and the third value(50) fills in for New_Key3. The process then repeats for the next row where the 2nd, 3rd and 4th values of Key2 are taken to fill New_Key1, New_Key2 and New_Key3 repectively. All this happens provided its mapped to the same Key1. I hope I'm clearer now.
Last edited by Corona688; 10-03-2012 at 12:23 PM.. Reason: Missed out some information and the content was not clearly formatted.
 

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LEARN ABOUT SUNOS

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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