#!/bin/bash # RANDOM ÀÌ ¾ó¸¶³ª ·£´ýÇÑ°¡? RANDOM=$$ # ½ºÅ©¸³Æ®ÀÇ ÇÁ·Î¼¼½º ID ¸¦ ½á¼ ·£´ý ³Ñ¹ö ¹ß»ý±âÀÇ seed¸¦ ´Ù½Ã »ý¼º. PIPS=6 # ÁÖ»çÀ§´Â ´«ÀÌ 6°³ÁÒ. MAXTHROWS=600 # ½Ã°£ÀÌ ³²¾Æ µ¹¸é ÀÌ ¼ýÀÚ¸¦ ´õ ´Ã·Áº¸¼¼¿ä. throw=0 # ´øÁø ¼ýÀÚ. zeroes=0 # Ãʱâȸ¦ ¾È Çϸé 0ÀÌ ¾Æ´Ï¶ó ³ÎÀÌ µÇ±â ¶§¹®¿¡ ones=0 # 0À¸·Î ÃʱâÈ ÇØ¾ß µË´Ï´Ù. twos=0 threes=0 fours=0 fives=0 sixes=0 print_result () { echo echo "ones = $ones" echo "twos = $twos" echo "threes = $threes" echo "fours = $fours" echo "fives = $fives" echo "sixes = $sixes" echo } update_count() { case "$1" in 0) let "ones += 1";; # ÁÖ»çÀ§¿¡ "0"ÀÌ ¾øÀ¸´Ï±î ÀÌ°É 1À̶ó°í ÇÏ°í 1) let "twos += 1";; # ÀÌ°É 2¶ó°í ÇÏ°í.... µîµî.. 2) let "threes += 1";; 3) let "fours += 1";; 4) let "fives += 1";; 5) let "sixes += 1";; esac } echo while [ "$throw" -lt "$MAXTHROWS" ] do let "die1 = RANDOM % $PIPS" update_count $die1 let "throw += 1" done print_result # RANDOM ÀÌ Á¤¸» ·£´ýÇÏ´Ù¸é °á°ú ºÐÆ÷´Â È®½ÇÈ÷ °í¸£°Ô ³ª¿Ã °ÍÀÔ´Ï´Ù. # $MAXTHROWS °¡ 600 ÀÏ ¶§´Â °¢°¢Àº 100 ¿¡¼ 20 Á¤µµÀÇ Â÷À̸¦ µÎ°í ºÐ»êµÇ¾î¾ß ÇÕ´Ï´Ù. # # ÁÖÀÇÇÒ °ÍÀº RANDOM ÀÌ Àǻ糼ö(pseudorandom) ¹ß»ý±âÀ̱⠶§¹®¿¡ # ÁøÂ¥·Î ·£´ýÇÑ °ÍÀº ¾Æ´Ï¶ó´Â Á¡ÀÔ´Ï´Ù. # ½¬¿î ¿¬½À¹®Á¦ Çϳª ³¾²²¿ä. # ÀÌ ½ºÅ©¸³Æ®¸¦ µ¿Àü 1000 ¹ø µÚÁý´Â °É·Î ¹Ù²ãº¸¼¼¿ä. # "¾Õ"À̳ª "µÚ" Áß¿¡ Çϳª°¡ ³ª¿À°ÚÁÒ? exit 0