bash 숫자인지 확인 admin 2014.08.11 #!/bin/bash OLDSUM1=cat /free/ip_sum/data.sum ### 숫자인지 체크 if [[ $OLDSUM1 =~ ^[0-9]+$ ]] then OLDSUM=echo $OLDSUM1 else OLDSUM=”0″ fi echo $OLDSUM Read More..