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Full Discussion: Join lines from two files based on match
Top Forums Shell Programming and Scripting Join lines from two files based on match Post 302844326 by pathunkathunk on Sunday 18th of August 2013 01:46:36 PM
Old 08-18-2013
Join lines from two files based on match
I have two files.
File1
Code:
>gi|11320906|gb|AF197889.1|_Buchnera_aphidicola
ATGAAATTTAAGATAAAAAATAGTATTTT
>gi|11320898|gb|AF197885.1|_Buchnera_aphidicola
ATGAAATTTAATATAAACAATAAAA
>gi|11320894|gb|AF197883.1|_Buchnera_aphidicola
ATGAAATTTAATATAAACAATAAAATTTTT

File2
Code:
AF197885	Uroleucon aeneum
AF197886	Uroleucon jaceae
AF197889	Uroleucon obscurum
AF197883	Uroleucon astronomus
AF197893	Uroleucon erigeronense

For all lines in file1, I want to match the term bracked by "gb|" and "." (i.e. AF197889 in the first line) to a line in file2. In this example of file1, all terms of interest start with "AF" but this isn't always the case.

If there's a match, I'd like to append the species name in file2, preceded by "_host_" to the matching line in file1, using underscores and no spaces. Desired output:
Code:
>gi|11320906|gb|AF197889.1|_Buchnera_aphidicola_host_Uroleucon_obscurum
ATGAAATTTAAGATAAAAAATAGTATTTT
>gi|11320898|gb|AF197885.1|_Buchnera_aphidicola_host_Uroleucon_aeneum
ATGAAATTTAATATAAACAATAAAA
>gi|11320894|gb|AF197883.1|_Buchnera_aphidicola_host_Uroleucon_astronomus
ATGAAATTTAATATAAACAATAAAATTTTT

With the meager skills I have, I could use "|" as a filed separator for file 1 and use awk to fill an array to find matches. But I'm not sure how to to append the file2 data, or how to accomplish it in one step. Can anyone help?
Last edited by Don Cragun; 08-18-2013 at 02:56 PM.. Reason: CODE tags; not QUOTE tags for input, output, and code samples.
 

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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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