How do i get Ethernet port details like speed/link up-down without using lspci/ethtool

Question

I was running a binary and in between network went down. Process was still running with its parent "1".
I re-logged into the system and find the running process and trigger $ kill -9 . After doing that I was trying to rerun the binary but it was not working with error message "Port is already being used" but I again checked there was no binary with such name. How I can resolve such issue ? Please help me .

Answer 1

Refer the following link it ha relevant details.
http://serverfault.com/questions/15776/how-to-check-the-physical-status-of-an-ethernet-port-in-linux

Answer 2

Just explaining what Harshita has pointed out -

# ethtool eth0
Settings for eth0:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
        Advertised auto-negotiation: Yes
        Speed: 1000Mb/s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: d
        Current message level: 0x00000037 (55)
        Link detected: yes