02-11-2009
you can grab the columns using:
awk '{ print $1, $2 }' file_nm > file_nm_out
and combine ( up to 12 -- but some characters might get swallowed up )
the 2-column-output-files with paste:
paste file1 file2 > file_comb.1
However, with lots of files... this will become a little bit of a challenge.
I'm willing to bet there's an easier approach to your actual problem.
meaning -- why do the first 2 columns need to appear in a new file?
and how many files are we actually talking about?
what is the final destination for this data file we're building?
how were the initial files created in the first place?
it seems if we redesign any one of these steps, we might be able to design a better end-to-end process.
Perhaps you could restate the actual issue?
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LEARN ABOUT DEBIAN
stereo3d
STEREO3D(1) General Commands Manual STEREO3D(1)
NAME
stereo3d - render a Raster3D scene as a side-by-side stereo pair
SYNOPSIS
stereo3d [options] [-png [outfile.png ]] < infile.r3d > outfile.png
stereo3d [options] -tiff [outfile.tiff] < infile.r3d > outfile.tiff
stereo3d is a shell script that renders a single Raster3D input file as a side-by-side stereo pair.
stereo3d uses the Raster3D utilities normal3d and render, and the ImageMagick image processing package. Intermediate scratch files are
created in directory TMPDIR, if defined, otherwise in /usr/tmp.
The right eye and left eye views are separately rendered, optionally given black borders, and merged to form a single side-by-side stereo
pair.
Input is from stdin, output is to stdout unless a filename is given as an argument to the -png or -tiff options.
EXAMPLES
If the following line would render a single image:
render -tiff single.tiff < input.r3d
then the following line would render the same scene as a stereo pair instead:
stereo3d -tiff stereo.tiff < input.r3d
OPTIONS
The options below are specific to stereo3d. All other options, e.g. -labels or -gamma 1.2 are passed through to the render program.
-angsep
By default the stereo effect is generated by a shear operation. The -angsep option creates stereo by using angular separation instead.
Neither option is perfect: the default handles shadows badly, and the -angsep option blurs specular highlights.
-border
By default the left and right images are placed next to each other with no intervening space and no frame around them. The -border option
requests a 4 pixel wide black border separating and surrounding the component images.
SOURCE
web URL:
http://www.bmsc.washington.edu/raster3d/raster3d.html
contact:
Ethan A Merritt
University of Washington, Seattle WA 98195
merritt@u.washington.edu
SEE ALSO
normal3d(l), render(l), raster3d(l)
AUTHORS
Ethan A Merritt.
Raster3D 19 Dec 2010 STEREO3D(1)