ipset_list 是一个列举一系列 netfilter ipset 程序的封装脚本，允许用户用各种方式匹配和显示设置，标题和基本元素，用户可以自定义彩色输出。
特性：
Calculate sum of set members (and match on that count).
List only members of a specified set.
Choose a delimiter character for separating members.
Show only sets containing a specific (glob matching) header.
Arithmetic comparison on headers with an integer value.
Match members using a globbing or regex pattern.
Suppress listing of (glob matching) headers.
Suppress listing of members matching a glob or regex pattern.
Calculate the total size in memory of all matching sets.
Calculate the total amount of all matching and traversed sets.
Colorize the output.
Operate on a single, selected, or all sets.
