ip 命令

软件安装

~$ sudo apt update
~$ sudo apt install -y iproute2
~$ ip -V
ip utility, iproute2-6.11.0, libbpf 1.5.0

使用概述

~$ ip help
Usage: ip [ OPTIONS ] OBJECT { COMMAND | help }
       ip [ -force ] -batch filename
where  OBJECT := { address | addrlabel | fou | help | ila | ioam | l2tp | link |
                macsec | maddress | monitor | mptcp | mroute | mrule |
                neighbor | neighbour | netconf | netns | nexthop | ntable |
                ntbl | route | rule | sr | stats | tap | tcpmetrics |
                token | tunnel | tuntap | vrf | xfrm }
    OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] |
                    -h[uman-readable] | -iec | -j[son] | -p[retty] |
                    -f[amily] { inet | inet6 | mpls | bridge | link } |
                    -4 | -6 | -M | -B | -0 |
                    -l[oops] { maximum-addr-flush-attempts } | -echo | -br[ief] |
                    -o[neline] | -t[imestamp] | -ts[hort] | -b[atch] [filename] |
                    -rc[vbuf] [size] | -n[etns] name | -N[umeric] | -a[ll] |
                    -c[olor]}

初见帮助信息，可谓繁杂，有违 KISS 原则。在一番实操后，发现繁杂之下是逻辑清晰的分门别类。

ip [ OPTIONS ] OBJECT { COMMAND | help }

OPTIONS 部分在特定情况下使用，因此先忽略。
OBJECT 部分为对应的类别，如 IP
后续是各个子命令的部分
默认子命令是 show