All,

Both iwconfig and ifconfig will give you the name of both your wired and wifi connections, if available. Wondering if there is, in some BASH libraries, a script that extracts the wired name if passed "lan" as an input var, or wifi name if passed "wifi" as the input var.

I currently have 2 scripts named 1.) lan-start.sh, 2.) wifi-start.sh. I wrote both of these over 5 years back when 'eth0' was always the wired connection and wlan0 was always the wifi connection. Can't use those anymore.

Want to simplify with one 'netw-start.sh' script that I can pass the "lan" or "wifi" options and it will:

1. Extract the appropriate connection name,
2. Restart the connection,
3. Start DHCP
4. Ping Goog 3 times to confirm successful connect.

An additional option would be to lookup the router UID/PWD in a file and get the router status, reporting if the router is down or in need of restart.

Cheers!

TBNK

I think current naming convention is that all ethernet will start with 'e' and wi-fi with 'w' regardless of remaining letters, so this works for me:

There would be a problem with multiple interfaces of the same type when you don't want the first one.

Ubuntu uses Network Manager which configured will automatically switch between ethernet and wireless adapters as well as start the dhcp client. You can use nmcli to manually switch or start, stop a connection.

You can go back to using network scripts to manage networking but you need to edit the files etc so that more or less will define the names used in your other script.