10-09-2012
Tried -k2,2 and it binned loads of old entries which I wanted!
Say I have this data, the highest number (newest) one will always be at the top and I only want to keep the top one as everything right of, and including, column 2 is the same (nothing has changed since last sweep).
1349455502 ygtr-1b:3/1/19 10/100/Gig Ethernet SFP
1349246545 ygtr-1b:3/1/19 10/100/Gig Ethernet SFP
However if we get the following then I want both entries retaining
1349455502 ygtr-1b:3/1/19 10/100/Gig Ethernet SFP
1349246545 ygtr-1b:3/1/19 Old customer name typed in here
-k2,2 seems to ONLY consider column 2 which is no good based on my first post's criteria.
This is tricky!
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XI(4) BSD Kernel Interfaces Manual XI(4)
NAME
xi -- Xircom CreditCard Ethernet device driver
SYNOPSIS
xi* at xirc?
Configuration of PHYs may also be necessary. See mii(4).
DESCRIPTION
The xi driver provides support for the Xircom CreditCard family of PCMCIA Ethernet adapters. Supported cards include:
Xircom CreditCard Ethernet II
Xircom CreditCard 10/100 Ethernet
Xircom RealPort 10/100 Ethernet + Modem (Ethernet function only)
Intel EtherExpress Pro/100
Compaq Netelligent 10/100
Cards which should work, but have not been confirmed include:
Xircom RealPort Ethernet
Xircom RealPort 10/100 Ethernet
Some Xircom Ethernet products are supported by the tlp(4) driver.
MEDIA SELECTION
Media selection is done using ifconfig(8) using the standard ifmedia(4) mechanism. Refer to those manual pages for more information.
SEE ALSO
ifmedia(4), mii(4), netintro(4), pcmcia(4), tlp(4), xirc(4), ifconfig(8)
HISTORY
The xi device driver appeared in NetBSD 1.5.
BUGS
The driver suffers from poor performance. Even with the 10/100 cards, do not expect more than ~450KB/s. Some 10/100 cards may not autonego-
tiate reliably and require manual media selection.
The Xircom multifunction cards which contain both Ethernet and modem interfaces are known to have problems. This is due to the card not
reporting itself correctly as a multifunction card.
BSD
June 1, 2007 BSD