"The standard guide for vi since 1986, this book has been expanded to include detailed information on vim, the leading vi clone that includes extra features for both beginners and power users."
So begins the write-up for the seventh edition of O'Reilly's "Learning the vi and vim editors." In 1986 when O'Reilly first brought this book out I was in my second year of university and I had a passing knowledge of computers. I knew they existed but I still wrote my papers by hand and then typed them up on an automatic typewriter. No grammar checker, other than myself or my friends wielding a red pen. No cut and paste, only lots of "white-out" or corrector ribbon. The personal computer was still a couple of years away. Yes, there were some, but most people talked to mainframes and "servers" with green screens and dumb terminals. At the time, I was in a special program that focused on Technology in Society and we had a network in our residence hall. It ran Novell as the network operating system (a beta version if I am not mistaken) and we spent more time trying to break the system then we did actually working on our lessons.
Fast forward to 1990 and I had an IBM PS/2 on my desk, my typewriter relegated to my closet. My parents bought it for me, and with a dot-matrix printer, it cost more than five thousand dollars. It has a forty megabyte hard disk, and a couple of hundred kilobytes of RAM. It runs a version of DOS and Microsoft Windows 3.0. I say all this in the present tense because it is still sitting in a cupboard in my den and as far as I know, it still runs. I used it for papers, CAD programs and presentations. It was all done pretty much by hand with only a few templates or wizards to help.
Today, five thousand dollars will get you a quad core server with a terabyte of disk and several gigabytes of RAM. You can run a couple of wizards and the software will spit out preformatted documents, ready-made presentations and W3C blessed web pages. The workstations under the average desk spend more time asleep than actually processing, with most users using less than one percent of the total processing power available to them. We have the choice of at least three operating systems, dozens of applications and hundreds of time wasters at our command. But have we made progress?
I sat in a meeting last week, discussing emergency preparedness. In that meeting, a wise man said, "We need to have two sets of contingency plans. One for if we have electricity and one for if we do not."
What does a new book on vi and contingency plans have to do with each other? Simplicity. Without starting a vi vs. emacs debate, as Linux systems come with both, it is important that every administrator should be familiar with vi. At least the simple commands. And every administrator should have contingency plans. As much as the technology changes, some things remain the same.
Practical Task Scheduling Deployment
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
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|The Firebird Project's Firebird Relational Database||Jul 29, 2016|
|Stunnel Security for Oracle||Jul 28, 2016|
|SUSE LLC's SUSE Manager||Jul 21, 2016|
|My +1 Sword of Productivity||Jul 20, 2016|
|Non-Linux FOSS: Caffeine!||Jul 19, 2016|
|Murat Yener and Onur Dundar's Expert Android Studio (Wrox)||Jul 18, 2016|
- Stunnel Security for Oracle
- The Firebird Project's Firebird Relational Database
- Murat Yener and Onur Dundar's Expert Android Studio (Wrox)
- SUSE LLC's SUSE Manager
- Managing Linux Using Puppet
- My +1 Sword of Productivity
- Non-Linux FOSS: Caffeine!
- Doing for User Space What We Did for Kernel Space
- Google's SwiftShader Released
- SuperTuxKart 0.9.2 Released
With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide