Letters to the Editor
I recently purchased Applixware 4.4.1. My reason for purchasing it was so that I could interoperate with co-workers who run MS Office. Applixware has the best MS Office import filters I have seen, but they are not quite perfect. I found that while text and tables seem to import well, figures are another story. So far, I have only tried importing a few MS Word 7.0 documents, but in general, the figures fail to convert. I recognize the complexity of the conversion task, and I applaud Applix for doing as well as it does. I hope the filters continue to mature, so that I can finally dump Windows 95 off my machine and use Linux exclusively.
—Steve Falco firstname.lastname@example.org
I know that it is late to correct an erratum in the February issue; nevertheless, I think Linux Journal is a magazine to read and save for later use, so even such a late correction could be of some benefit.
The error is in Listing 5 of the article “Attaching Files to Forms”, in the column “At the Forge” on page 93. This listing should contain the following line between lines 2 and 3:
no strict "refs";
If this line is not present, the Perl interpreter will abort the script as soon as the variable reference $userfile is used for write. The uploaded file will be created but not written, i.e., it will have zero length.
—Aldo Mozzi email@example.com
In the November LJ, “Best of Technical Support” had a question regarding installing Linux (specifically X) on an IBM Thinkpad 365. There is an excellent article regarding this in Linux Gazette, http://www.ssc.com/lg/issue21/notebook.html.
I was able to get X working on Thinkpad using this guide, and the author, Sam Trenholme, was extremely helpful in getting me over a few problems when I contacted him via e-mail.
—Nate Dutra firstname.lastname@example.org
Your fine web site, http://www.linuxresources.com is usually the first thing I check on weekdays when I boot up. You have helped me greatly in learning about Linux.
Thank you very much for reporting on Dr. Meyer, Eiffel and Design by Contract. Here are three open-source Eiffel and Design by Contract resources:
SmallEiffel, the official GNU Eiffel: http://www.loria.fr/projets/SmallEiffel/
TOM, a new GPL/LGPL OO language with multiple inheritance and Design by Contract traits: http://gerbil.org/tom/
A page I edit: http://www.newhoo.com/Computers/Programming_Languages/Eiffel/
—Jerry Fass email@example.com
Last week I decided to totally change over to Linux after reading the latest horror story about Windows. Apparently, people connected to the Internet on W-95-98 can be snooped on simply by typing their IP number and a few backslashes. Suddenly, their whole system appears in the other person's MS Explorer window.
So here I am, scurrying to get a faster motherboard and a bigger hard drive. I am all enthusiastic about the new KDE and GNOME projects, yet when I read the installation manuals—S.u.S.E. or Red Hat—I am horrified by how much totally new and alien system configuration is needed for a new Linux user. The problem is exemplified by the marvelous advertising flyer sent out by S.u.S.E. for its 5.2 release. It seduces the user with a DOS-Windows box packed with a lifetime accumulation of precious utilities. It implies that UNIX clones for these treasures (and more) effortlessly await on the new Linux user's desktop. The actual case is that this happens only after endless installations and configurations.
The open-source concept has been much in the news lately, yet it seems that these installation processes are the one place where the open-source environment is not used to evolve solutions to these problems. Rather, it is the special province of the private bundling companies. Regardless of whether they put their products in the public domain, they are not developed in the open. People seem to believe that the greed of these companies will produce the fastest results, but I have not seen any miracles yet. Perhaps there are installation projects underway in the open-source community. If so, nothing could be more critical to the advancement of Linux.
We often hear people crowing in LJ that some huge corporation or the defense department is now more efficient because of Linux. I am much more impressed by ease of use by the ordinary person. If LJ were to make open-source installation projects a continuing focus of articles, it could do an incredible service to the evolution and spread of Linux.
—David Briars firstname.lastname@example.org
Easier installation seems to be what everyone is asking for these days. Red Hat is working on it with LinuxConf, and Caldera with COAS (see article in this issue) —Editor
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.
Free to Linux Journal readers.View Now!
|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