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3418 maechler 1 
#!/bin/sh
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#
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URL=http://www.cise.ufl.edu/research/sparse/CSparse
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tarFile=CSparse.tar.gz
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## subdirectory *inside* tar file:
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sDir=CSparse/Source
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# ----------------- a "full path" for the current directory:
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MatrixDir=`dirname $0`; cd $MatrixDir; MatrixDir=`pwd`
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if [ -d $MatrixDir ]
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then echo "Downloading into directory '$MatrixDir' .."
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else echo "no directory '$MatrixDir' .. exiting"; exit 3
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fi
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cd $MatrixDir
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#
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wget $URL/$tarFile
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#
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if [ ! -r $tarFile ]; then echo "no file $tarFile .. exiting"; exit 1 ; fi
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## extract only the part we want
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tar zxf $tarFile $sDir
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if [ ! -d $sDir ]; then echo "no directory $sDir .. exiting"; exit 2 ; fi
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echo -n "Moving and cat'ing files from $sDir ..	 "
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cd $sDir
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chmod a+r cs.h
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mv  cs.h   $MatrixDir
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cat cs_*.c | sed -e '1 p' -e '/^#include/d' > $MatrixDir/cs.c
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echo '[Ok]'
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echo -n "cleaning up $sDir ..			 "
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## keep the [TAB]s here               ^^
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cd $MatrixDir
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rm -rf $tarFile $sDir
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rmdir `dirname $sDir`
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echo '[Ok]'