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Full Discussion: Match value in column and append file with new values
Top Forums Shell Programming and Scripting Match value in column and append file with new values Post 302916539 by redse171 on Wednesday 10th of September 2014 02:08:03 PM
Old 09-10-2014
Quote:
Originally Posted by Don Cragun
Here is how I would do it (now that we know how you want to handle the case that wasn't covered by your description). It is similar to SriniShoo's code, but formatted in a way that I find easier to follow:
Code:
awk '
BEGIN {	FS = OFS = "\t"		# Set input and output field separators
}
NR == 1 {			# Grab field headers from 1st line in 1st file
	for(i = 2; i < NF; i++)
		h[i] = $i
	next			# Skip to next input line
}
FNR == NR {			# Gather data for field 1 in 1st file
	d[$1]			# Initialize to empty string
	for(i = 2; i < NF; i++)	# For each Yes add header to the list...
		if($i == "Yes")
			d[$1] = ((d[$1] == "") ? "" : d[$1] ",") h[i]
	if(d[$1] == "")		# Set last field based on what we have found
		d[$1] = "-" OFS $NF	# No "Yes"; use lsat field on line
	else	d[$1] = d[$1] OFS "Yes"	# 1 or more "Yes"; "Yes"j
	next			# Skip to next input llne
}
{	print $0, d[$2]		# Print lines from 2nd file with data from 1st file
}' file_[12]

Hi Don Crugan,

This code worked awesome!! I tried on my real data and the results are perfect. Thanks so much for your detail explanation too. I was working on codes by RavinderSingh13. It worked great on the sample data but i have a problem with my real data, where results for Tra with 'No' are missing together with the one that u highlighted earlier. Trying to figure out the reason and solution.
Last edited by redse171; 09-10-2014 at 10:51 PM.. Reason: english
 

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LEARN ABOUT V7

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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