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Not your Grandfather's dd Utility!

A recent article in Red Hat Magazine by Noah Gift and Grig Gheorghiu called “This isn’t your grandpappy’d dd command demonstrated how to use Python, the dd utility and the Google Chart API to produce a bar chart showing throughput at different block sizes. However the output from the Python script was not the actual graph but a URL which you then had to paste into a Web browser to view the resulting chart. I though this script would be useful but did not want to have to cut and paste a URL into a Web browser so I decided

KSH93 Date Manipulation

Korn shell 93 includes support for extensive date and time arithmetic and transformation via the printf builtin function. However examples on using this this feature are scarce and I have written this short article in an attempt to make more shell script developers aware of this extremely useful and powerful feature.