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This is the command event2vrule that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


event2vrule - adds 'events' to rrdtool graphs

SYNOPSIS


event2vrule <params>

DESCRIPTION


Adding Events to Graphs

There is a new graphing feature which allows you to specify events that should be
displayed in your graphs. These events are simply a list of points in time at which
something of interest occurred.

For instance, one could create a plain text file in the graphs directory called events.txt
containing these lines:

2001/02/10 1538 added support for events to FlowScan graphs
2001/02/12 1601 allowed the events file to be named on make command line

Then to generate the graphs with those events included one might run:

$ make -f graphs.mf events=events.txt

This feature was implemented using a new script called event2vrule that is supplied with
FlowScan. This script is meant to be used as a ``wrapper'' for running rrdtool(1),
similarly to how one might run nohup(1). E.g.:

$ event2vrule -h 48 events.txt rrdtool graph -s -48h ...

That command will cause these VRULE arguments to be passed to rrdtool, at the end of the
argument list:

COMMENT:\n
VRULE:981841080#ff0000:2001/02/10 1538 added support for events to FlowScan graphs
COMMENT:\n
VRULE:982015260#ff0000:2001/02/12 1601 allowed the events file to be named on make
command line
COMMENT:\n

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