netstat/ifconfig: command not found

```
-- is your machine connected via wifi or cable?
/home/forretp/.basher/cellar/bin/netcheck: line 70: netstat: command not found
➨: WARN: This system does not have a default route
/home/forretp/.basher/cellar/bin/netcheck: line 118: ifconfig: command not found
➨: ERR: There is no loopback interface in this system
```