#!/bin/bash # 'bc'¸¦ 'here document'¿Í °°ÀÌ ¾´ °ÍÀ» ¸í·É¾î ġȯÀ» ½á¼ ½ÇÇà. var1=`bc << EOF 18.33 * 19.78 EOF ` echo $var1 # 362.56 # $( ... ) Ç¥±â¹ýµµ ¿ª½Ã µË´Ï´Ù. v1=23.53 v2=17.881 v3=83.501 v4=171.63 var2=$(bc << EOF scale = 4 a = ( $v1 + $v2 ) b = ( $v3 * $v4 ) a * b + 15.35 EOF ) echo $var2 # 593487.8452 var3=$(bc -l << EOF scale = 9 s ( 1.7 ) EOF ) # 1.7 ¶óµð¾ÈÀÇ »çÀΰªÀ» ¸®ÅÏ. # "-l" ¿É¼ÇÀº 'bc'ÀÇ ¼öÇÐ ¶óÀ̺귯¸®¸¦ È£ÃâÇÕ´Ï´Ù. echo $var3 # .991664810 # ÀÌÁ¦, ÇÔ¼ö¿¡¼ ÇØ º¸ÁÒ... hyp= # Àü¿ª º¯¼ö ¼±¾ð. hypotenuse () # Á¤»ï°¢ÇüÀÇ ºøº¯À» °è»ê. { hyp=$(bc -l << EOF scale = 9 sqrt ( $1 * $1 + $2 * $2 ) EOF ) # ºÒÇàÇÏ°Ôµµ, Bash ÇÔ¼ö¿¡¼´Â ºÎµ¿Çü °ªÀ» ¸®ÅÏÇÒ ¼ö ¾ø½À´Ï´Ù. } hypotenuse 3.68 7.31 echo "hypotenuse = $hyp" # 8.184039344 exit 0