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I am currently on the beautiful island of Cebu in the Philippines visiting with my old friend and colleague Charles Richmond at IISC and giving some talks on OS internals. I use a Lenovo Thinkpad laptop running Windows Vista Ultimate when travelling with Mozilla Firefox 3 as my default browser. Firefox 3 comes with a default [...] The majority of GNU/Linux and Unix shells are not designed for extensibility or embeddability. The current exception is the 1993 version of the Korn Shell (ksh93) which includes support for runtime linking of libraries and custom builtins and accessing shell internals. It is very difficult, however, to find good information or examples of how to [...] 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 [...] While bash is the default shell on most, if not all, Linux distributions, there are times when using ksh93 is more efficient and thus makes more sense. A classic problem in shell scripting is the manipulation of dates and times. Most shells do not include support for date/time string manipulation and the user [...] |
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