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Full Discussion: compare 2 very large lists of different length
Top Forums UNIX for Dummies Questions & Answers compare 2 very large lists of different length Post 302385815 by uiop44 on Sunday 10th of January 2010 05:55:23 AM
Old 01-10-2010
compare 2 very large lists of different length
I have two very large datasets (>100MB) in a simple vertical list format. They are of different size and with different order and formatting (e.g. whitespace and some other minor cruft that would thwart easy regex).

Let's call them set1 and set2.

I want to check set2 to see if it contains any of the data entries in set1. I think of this as individual greps of set2 using each line of set1.

(NB- I could, with some work, manipulate the sets to make the order and formatting the same.)

In your opinion, what is the best tool to use for this search of set2 using the data in set1?

- comm?
- a looping shell script, or xargs, that calls grep?
- grep -f?
- diff?
- combine the sets (after making format the same) then sort and print only duplicate lines? uniq -d, sed or awk
 

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LEARN ABOUT DEBIAN

paraview

PARAVIEW(1)						      General Commands Manual						       PARAVIEW(1)

NAME

       Paraview - Rendering and displaying program for small and large, three dimensional datasets.

SYNOPSIS

       paraview  [-cc  |  --cave-configuration FILE] [--compare-view OPT] [--connect-id ID] [--data DATA] [--data-directory DIR] [-dr | --disable-
       registry] [--exit] [/? | --help] [--image-threshold THRESH] [-m | --machines FILE] [--run-test CASE] [--run-test-init CASE] [-s |  --server
       NAME] [--stereo] [--test-directory DIR] [-V | --version]

DESCRIPTION

       Paraview  is a program for displaying and rendering of small to large datasets in two or three dimensions.  It runs on a single computer or
       on a cluster of nodes with distributed or shared memory. The Visualization Toolkit (VTK) is used as processing and rendering machine.

Options
       -cc | --cave-configuration FILE
	      Specify the file FILE that defines the displays for a cave. It is used only with CaveRenderModule.

       --compare-view OPT
	      Compare the viewport to a reference image, and exit.

       --connect-id ID
	      Set the ID of the server and client to make sure they match.

       --data DATA
	      Load the specified DATA.

       --data-directory DIR
	      Set the data DIR directory where test-case data are.

       -dr | --disable-registry
	      Do not use registry when running ParaView (for testing).

       --exit Exit application when testing is done. Use for testing.

       /? | --help
	      Displays available command line arguments.

       --image-threshold THRESH
	      Set the threshold THRESH beyond which viewport-image comparisons fail.

       -m | --machines FILE
	      Specify the network configurations file FILE for the render server.

       --run-test CASE
	      Run a recorded test case CASE.

       --run-test-init CASE
	      Run a recorded test initialization case CASE.

       -s | --server NAME
	      Set the name NAME of the server resource to connect with when the client starts.

       --stereo
	      Tell the application to enable stereo rendering (only when running on a single process).

       --test-directory DIR
	      Set the temporary directory DIR where test-case output will be stored.

       -V | --version
	      Give the version number and exit.

SEE ALSO

       On-line documentation from the program help menu, wiki pages at	http://paraview.org/Wiki/ParaView,  FAQ  at  http://paraview.org/Wiki/Par-
       aView:FAQ and mailing list at http://public.kitware.com/mailman/listinfo/paraview

AUTHOR

       Gerber van der Graaf

								    21 May 2008 						       PARAVIEW(1)
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