Which short command to only output the IPv4 routing table?
Solution 1:
$ netstat -nr -f inet
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif Expire
default 192.168.1.254 UGSc 10 0 en4
default 10.0.2.1 UGScI 0 0 ppp0
10 ppp0 USc 0 0 ppp0