shell-比較整數大小

#!/bin/sh a=$1 b=$2 pt(){ echo "請輸入爭取的格式：sh $0 num1 num 2"  exit 1 } if [ $# -ne 2 ];then pt fi expr $a + 0 >/dev/null 2>&1 [ $? -ne 0 ] && pt expr $b + 0 >/dev/null 2>&1 [ $? -ne 0 ] && pt if [ $a -l

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