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#!/bin/sh
x=$1 ; shift
y=$1 ; shift
rm tmp.0 > /dev/null 2>&1
ln -s $x tmp.0
$* tmp.0 > tmp.1
rm tmp.0
ln -s $y tmp.0
$* tmp.0 > tmp.2
rm tmp.0
diff -c tmp.1 tmp.2
exit
#eof
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