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March 2, 2022 – 2:00 pm

Books have been written on the subject of awk and sed. Here’s a small sample of commands I put together over the years that are useful for everyday system administration tasks. Most of these tasks …

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Articles tagged with: GNUPlot

Timeline Plots with GNUPlot

April 13, 2006 – 10:52 am

GNUPlot is an open-source versitile data plotting and mathematical charting application. Timeline plot is the most common type of a plot you would generate. It also seems that it’s one of the more capricious features …

Simple network monitoring with ping

April 11, 2006 – 10:12 am
computer_security_it_privacy_0002

In the Spring of 2005 Comcast experienced a major DNS outage. Since then many Comcast users have switched to DNS servers that belong to Verizon and other ISPs. Comcast started taking a lot of flak …

Using GNUPlot to chart MySQL data

November 20, 2005 – 12:17 pm
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The following Korn shell function connects to a MySQL database and extracts specified data, which is then plotted as a function of time using GNUPlot.  Using correct syntax is critical. Note the use of single- …