Focus on Software
The Linux community has become a true melting pot of cultures as well as a mix of users from super geek to <\#252>ber-newbie. For each, I have something to chew on this month. For the super geeks (code hackers, Linux wizards, etc.) I suggest looking toward the lowest common denominator, which now seems to be refugees looking for stability and useability. This means not only making your programs as useable as possible (think KISS, keep it stupid, simple), but also as available as possible. What I'm talking about regarding availability is the judicial use of libraries and Perl modules. I know some think GNOME is sexy, but there's nothing sexy about a program that, while it really doesn't need GNOME libs to run, won't compile without it. To the newbies, I offer that you are not as useless to the Linux community as you might think you are. If you can do nothing else, perhaps you can translate documentation or proofread it, insert comments and questions and send them either to the official mail list or to the author. Programs require testing (and so, alpha and beta testers) and documentation among other things. Help out the way you can. Offer support. The more folks that do this, the more momentum open source will achieve, and the better it will become.
The only drawback I see for this utility is it requires a web server on your DHCP system. You might want to find a smaller one that will run Perl scripts (perhaps a small Perl web server—I'll need to look for one of those). But dhcpstatus shows at a glance information that takes a few minutes to discern by looking or grepping through the leases.dhcp file. Granted, you can also do this with Webmin if you've chosen to install it, but sometimes that's like using a supercomputer when xcalc would do the job faster. Requires: Perl, web server on the DHCP server system, web browser.
If you like MindMind, you'll like this particular game. While not (yet) particularly customizable (you can't change things like colors, number of colors, number of guesses, number of hidden pieces) it's a good start. Just click on or drag-and-drop the pieces. When you're ready, click on the box to the side and see how you fared. It's been a while since I've played MasterMind, and it showed on my first few tries. Requires: libqt2, libstdc++, libm, libXext, libX11, libSM, libICE, libpng, libz, libjpeg, libmng, glibc.
If you're like me and despise the info pages (mostly for the hateful info program I can't bend to my will) but you like Lynx, then let me suggest you have pinfo installed on all those nongraphical systems (servers) out there. Yes, I know konquerer will make short work of info files (if you use KDE). Unfortunately, I always find the systems for which I most need to access the info pages are those not running an X server. While pinfo is extremely good for viewing info pages, I still uninstall all info-related stuff. Yes, I know info is GNU not UNIX, but I've never seen it on anything but UNIX systems, and I still think the man pages are better. But until info dies the horrid death it deserves, at least there's pinfo. Requires: libreadline (optional), libncurses (optional), glibc.
If you run X (I think most folks do), this is a mail client you should look into. It looks like Netcape's Messenger but is a lot lighter, quicker and less prone to crash. It also can be split into multiple boxes and moved around the screen (or sent to separate screens). This mobility can be convenient for seeing what's coming in without keeping a large application open on the screen. Requires: libgtk, libgdk, libgmodule, libglib, libdl, libXext, libX11, libm, libgdk_imlib, libgthread (optional), libpthread (optional), glibc.
This is a very nice utility that will allow you to view a POP3 mailbox from a web browser. One of the nice things is that rymo doesn't need to be on the same server as your mail; you can reach out and access your mail server across the network. While good, rymo still has some drawbacks: by default, it only sees the first 20 unread messages on your server that are unread. You also don't have access to mail you've already seen. Good for checking mail quickly, but mail you need time to think about before replying is a problem. Requires: web server w/PHP (3 or 4), web browser.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
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.
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- SUSE LLC's SUSE Manager
- My +1 Sword of Productivity
- Murat Yener and Onur Dundar's Expert Android Studio (Wrox)
- Managing Linux Using Puppet
- Non-Linux FOSS: Caffeine!
- Doing for User Space What We Did for Kernel Space
- SuperTuxKart 0.9.2 Released
- Parsing an RSS News Feed with a Bash Script
- Google's SwiftShader Released
- Rogue Wave Software's Zend Server
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