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2001/11/05(17:16) from 61.33.238.189
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½ÇÁ¦ Ä¿¸àµå ¶óÀλ󿡼­ $ math 4 2  ¿£ÅÍÅ°¸¦ ´­·¶À»¶§ È­¸é¿¡
4 + 2 = 6
4 - 2 = 2
4 * 2 = 8
4 / 2 = 2
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####  math script #####
awk '{if (argc != 2) then
      print "Usage : Need only two arguments."
      exit

      else
      $a = $1 + $2
      printf ("$1 + $2 = %.2f\n"), $a
      $b = $1 - $2
      print "$1 - $2 =", $b
      $c = $1 * $2
      print "$1 * $2 =", $c
      $d = $1 / $2
      print "$1 / $2 =", $d
}'

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