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Full Discussion: Printing from file with awk
Top Forums Shell Programming and Scripting Printing from file with awk Post 302893125 by keenboy100 on Monday 17th of March 2014 01:12:56 PM
Old 03-17-2014
Printing from file with awk

Hi,

I'm trying to find an efficient way with awk to print the lines from a file which match the string 'OFFLINE' and DO NOT match the string ONLINE within 2 minutes from the date stamp in column 1.

The file is similar to the following:

Code:
09:40:26    HostC    OFFLINE
09:40:43    HostA    ONLINE
09:41:15    HostB    OFFLINE
09:41:55    HostA    ONLINE
09:42:26    HostD    ONLINE
09:42:49    HostB    ONLINE
09:44:05    HostB    ONLINE
09:44:59    HostB    OFFLINE

The output I want from this file would be:

Code:
09:40:26    HostC    OFFLINE

Is this something that can be achieved with AWK?

Many thanks,
 

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SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8) 		     systemd-networkd.service			   SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8)

NAME
systemd-networkd-wait-online.service, systemd-networkd-wait-online - Wait for network to come online SYNOPSIS
systemd-networkd-wait-online.service /lib/systemd/systemd-networkd-wait-online DESCRIPTION
systemd-networkd-wait-online is a one-shot system service that waits for the network to be configured. By default, it will wait for all links it is aware of and which are managed by systemd-networkd.service(8) to be fully configured or failed, and for at least one link to gain a carrier. OPTIONS
The following options are understood: -i, --interface= Network interface to wait for before deciding if the system is online. This is useful when a system has several interfaces which will be configured, but a particular one is necessary to access some network resources. This option may be used more than once to wait for multiple network interfaces. When used, all other interfaces are ignored. --ignore= Network interfaces to be ignored when deciding if the system is online. By default, only the loopback interface is ignored. This option may be used more than once to ignore multiple network interfaces. --timeout= Fail the service if the network is not online by the time the timeout elapses. A timeout of 0 disables the timeout. Defaults to 120 seconds. SEE ALSO
systemd(1), systemd-networkd.service(8) systemd 237 SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8)
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