difference between netstat and ss in linux?

Question

In linux, netstat command tells us information of active sockets in system.

I understand that netstat uses /proc/net/tcp to acquire the system

Answer 1

ss is a utility used to investigate sockets in Linux and Unix systems. It shows information similar to netstat and able to dump socket statistics.

But netstat cannot be replaced full by ss. Some netstat commands correspond better to ip command.

    $ netstat -r   replaced by  $ ip route
    $ netstat -i   replaced by  $ ip -s lin
    $ netstat -g   replaced by  $ ip maddr

I would say the "older" netstat command can be replaced with both ss and ip commands.