3 ms·

And either the "ip" command can never change how it formats its output, or your script with that command will break some day.

• qwertyuiop924 10y ago
  ...Which is why I said it was ugly. The grep probably won't break, the cut is more likely to. This is in part because the 'ip' command isn't very well designed. A better solution I found is ip addr show wlan0 | grep -Po 'inet \K[\d.]+' Which is less likely to break. If your system supports it, hostname -I Works great. However, this seems to be an ubuntuism, and it doesn't work on my system.
  • vasilia 10y ago
    ip addr show eth0 | awk '/inet/ { print $2 }' Will be better ;) 'inet[::space::] ' not working with ipv6 addresses.
    • qwertyuiop924 10y ago
      I though there was a specific desire for ipv4 addrs. That's why the space was there.