Usage: ip [ OPTIONS ] OBJECT { COMMAND | help }
       ip [ -force ] -batch filename
where  OBJECT := { link | address | addrlabel | route | rule | neigh | ntable |
                   tunnel | tuntap | maddress | mroute | mrule | monitor | xfrm |
                   netns | l2tp | fou | macsec | tcp_metrics | token | netconf | ila |
                   vrf | sr | nexthop }

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 | -I | -D | -M | -B | -0 |
            -l[oops] { maximum-addr-flush-attempts } | -br[ief] |
            -o[neline] | -t[imestamp] | -ts[hort] | -b[atch] [filename] |
            -rc[vbuf] [size] | -n[etns] name | -N[umeric] | -a[ll] |
            -c[olor]}

$ ip -4 a

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
3: wlp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    inet 192.168.1.35/24 brd 192.168.1.255 scope global dynamic noprefixroute wlp4s0
       valid_lft 85828sec preferred_lft 85828sec

$ ip -6 addr

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
3: wlp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::67c3:63c4:a12e:7f2a/64 scope link noprefixroute
       valid_lft forever preferred_lft forever