Because this type of report already contains a two column output, it is just piped into
the the visualization script and transformed into a bar chart.
aureport -e -i --summary
| mkbar events
Figure 30.3 Bar Chart—Common Event Types
For background information about the visualization of audit data, refer to the Web site
http://people.redhat.com/sgrubb/audit/
of the audit project at
visualize/index.html.
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Security Guide