nic + detecting the presence of a carrier

[Frank Elsner]

On Thu, 31 Aug 2006 12:04:12 +0200 Gregory Machin wrote:
> Hi.
> I need to write a script the can restart services based on where a cable is
> plugged into a nic or not ..
> How do I get the status of the carrier on the nic ...

The output of "ethtool ethX" contains the line

               Link detected: yes

and the output of "mii-tool ethX" shows

                   eth0: negotiated 100baseTx-FD, link ok
                   
which both should be usable for your purpose.



--Frank Elsner