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      1 #!/bin/sh
      2 
      3 x=$1 ; shift
      4 y=$1 ; shift
      5 
      6 rm tmp.0 > /dev/null 2>&1
      7 ln -s $x tmp.0
      8 $* tmp.0 > tmp.1
      9 
     10 rm tmp.0
     11 ln -s $y tmp.0
     12 $* tmp.0 > tmp.2
     13 
     14 rm tmp.0
     15 
     16 diff -c tmp.1 tmp.2
     17 exit
     18 
     19 #eof
     20