MisterX Tech

I am going to start a new section of Linux CLI foo  that you may or may not know about. Many of these will be faster ways of doing things or getting information in a slightly different fashion. Many are old favorites of mine that I just wanted to share in case they help someone else.

Now without further ado the first command is :

ip -s l

short for ip stats list this gives a fast overview of your interfaces and  the types of packets that have been going through them. Output looks like this :

[root@pbnj lisa11]# ip -s l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
RX: bytes  packets  errors  dropped overrun mcast
1084866683 400954   0       0       0       0
TX: bytes  packets  errors  dropped carrier collsns
1084866683 400954   0       0       0       0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:30:48:61:c7:64 brd ff:ff:ff:ff:ff:ff
RX: bytes  packets  errors  dropped overrun mcast
552827144  1541759  0       0       0       0
TX: bytes  packets  errors  dropped carrier collsns
1428902993 1445402  0       0       0       0
3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000
link/ether 00:30:48:61:c7:65 brd ff:ff:ff:ff:ff:ff
RX: bytes  packets  errors  dropped overrun mcast
0          0        0       0       0       0
TX: bytes  packets  errors  dropped carrier collsns
0          0        0       0       0       0

More information on interface stats can be found via:
ethtool -S $DEVICE
ifconfig $device (or just ifconfig for all devices)
ifconfig -s $DEVICE

among others….