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  1. or download this
    perl -e '$x="\xe9"; $y="\x{00e9}"; print "\\xe9 eq \\x00e9\n" if ($x e
    +q $y)'
    
    # output is:
    \xe9 eq \x00e9
    
  2. or download this
    perl -e 'binmode STDOUT, ":utf8"; print "\xe9"' | xxd
    
    # output is:
    0000000: c3a9                                     ..