#!/bin/bash # »ê¼ú Å×½ºÆ®. # (( ... )) ´Â »ê¼ú¹®À» Æò°¡ÇÏ°í Å×½ºÆ® ÇØ ÁÝ´Ï´Ù. # Á¾·á »óÅ´ [ ... ] ¿Í ¹Ý´ëÀÔ´Ï´Ù! (( 0 )) echo "\"(( 0 ))\" ÀÇ Á¾·á »óÅ´ $?." # 1 (( 1 )) echo "\"(( 1 ))\" ÀÇ Á¾·á »óÅ´ $?." # 0 (( 5 > 4 )) # Âü echo $? # 0 (( 5 > 9 )) # °ÅÁþ echo $? # 1 exit 0