代码：

[root@oracle-cluster-3 shell]# cat match_list.sh 
list_a="2 3 5 67 90"
current_num=91
after_all=108

is_in="no"

for list_item in $list_a
do

  #echo "current in list is: [$list_item]"

  if [ $list_item -gt $current_num ]
  then
    is_in="yes"
  fi

  #echo ""

done

echo "current num is: [$current_num]"
echo "does current num in the list? [$is_in]"
[root@oracle-cluster-3 shell]# 
[root@oracle-cluster-3 shell]# sh match_list.sh 
current num is: [91]
does current num in the list? [no]
[root@oracle-cluster-3 shell]# 
[root@oracle-cluster-3 shell]#

——————————————
Done。