Network World Data Center News Feed

The Network World Data Center news feed is updated most days, generally with less than five new stories. Some days there are no new stories. Frequently mixed with other network news feeds.

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28th Jan 2021 2
29th Jan 2021 2
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Last 3 items

How to use the pi command: 2-Minute Linux Tips

Published on 26th February, 2021, 10:00 AM

In this Linux tutorial, learn how to use the pi command. You probably won't need it very often, but, if you need to calculate pi to some arbitrary number of digits, you'll probably be surprised at how easy this can be.

Linux server certifications becoming a must-have for IT pros

Published on 24th February, 2021, 11:00 AM

Linux certification is increasingly significant for tech workers as the public cloud and software-defined networking become ever more important. A Linux cert can set IT professionals apart from the herd and potentially put a lot more money in their bank accounts.

Once these certifications were a gauge of reliability, according to CompTIA chief tech evangelist James Stanger. “Twenty years ago, Linux tended to attract people who were a little edgier,” he said. “So certification was traditionally used in the Linux side just to find people you can work with—will they show up on time?”

Now, these certifications are a demonstration not only of proficiency but also dedication to self-improvement. “You can’t go wrong with a certification,” said Joe Faletra, director of infrastructure services at Modis, a technology staffing and consulting firm. “I’ll lean towards certs over experience [in hiring], because this person has put the effort into learning and passing the exam.”

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Selectively reusing commands on Linux

Published on 23rd February, 2021, 11:00 AM

The Linux command line allows your system to remember commands that you use—up to a limit set by your HISTSIZE variable. Since each user’s HISTSIZE is generally set to 1000, that means Linux can remember the last 1000 commands you entered and make it easy to reuse them without retyping them.

Unless you configure your history settings differently, all of your commands will be remembered. You can put some restrictions on that behavior if you like. For example, you might not want to save every command you use to read a man page or every time you type pwd to ask where you’re currently sitting in the file system. How to restrict the commands that are remembered and which are not is covered here.

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