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  1. or download this
    perl -e 'open TEST,"."; do {( -d TEST )?print "1$/" : print "0$/";}'
    1
    
  2. or download this
    perl -e 'open TEST,"." && do {( -d TEST )?print "1$/":print "0$/";}'
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  3. or download this
    perl -e 'open TEST,"." and do {( -d TEST )?print "1$/": print "0$/";}'
    1