The oneline (-o) option is not working for all commands. It certainly is not working for link. See examples. + ip link show dev enp0s21f0u1 6: enp0s21f0u1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000 link/ether 7a:a5:4e:6b:75:d4 brd ff:ff:ff:ff:ff:ff + ip -o link show dev enp0s21f0u1 + ip -o -f inet addr show enp0s21f0u1 6: enp0s21f0u1 inet 192.168.1.33 peer 192.168.1.240/32 scope global enp0s21f0u1\ valid_lft forever preferred_lft forevr
It looks like this has been fixed already? https://git.busybox.net/busybox/commit/?id=bb3a9531b28f5c946452b92c8ac5a0951c5eab03