A Comparison of Xemacs and Gnu Emacs
Both versions of Emacs protect you from losing files or unsaved text. As you type, the current buffer is periodically saved (at user-configurable intervals) to a file called “#filename#”, which can be restored in a later editing session. As soon as a file is successfully saved, this temporary file is automatically deleted. The normal type of backup file (filename~) is also created when files are saved. It would be difficult to lose very much text with these safeguards in effect.
Although both Gnu Emacs and Xemacs come with HTML editing modes, another possibility is the excellent HTML-Helper-Mode by Nelson Minar. This mode, available from http://www.santafe.edu/~nelson/, is quick, has good syntax highlighting, and supports Netscape tags and tables.
Ben Wing, one of the main developers of Xemacs, has written an elaborate SGML editing mode, which could be useful to anyone writing in the Linuxdoc SGML format, as used by the Linux Documentation Project. This package is included with Xemacs.
The VM mail system is included with Xemacs, and can be obtained separately for use with Gnu Emacs. Though Rmail (the original Emacs mail client) comes with both Emacs versions, it's not as full-featured as VM and uses a proprietary message format, which is a nuisance if you wish to access mail folders with other mail programs.
And then there is William Perry's W3, an ongoing project (consisting of a package of LISP files) which allows Emacs to function as a web browser. In its latest incarnation W3 supports style-sheets, inline images, background colors and bitmaps, and even some of the Netscape tags. It's written in LISP, though, and tends to be rather slow. With graphics turned off, running it is like running an improved Lynx as part of Emacs. W3 is definitely worth checking up on from time to time, as development is active and newer versions of Xemacs are likely to be optimized for running W3 as well. The current stable and beta versions of W3 can be obtained from ftp://ftp.cs.indiana.edu in the /pub/eLISP/w3 directory.
Either one of these two editors contains more features and obscure functions than most of us will ever use. Xemacs is characterised by its bells and whistles, and its developers maintain a strong presence on the Internet. Gnu Emacs may have more users, many of whom are also willing to help newcomers, but if you are interested in influencing future development of either editor, you will probably have more luck with the Xemacs team. Luckily the basic editing commands in each version are nearly identical, so if you learn one it doesn't take long to come up to speed in the other.
Larry Ayers (firstname.lastname@example.org), lives on a small farm in northern Missouri, where he is currently engaged in building a timber-frame house for his family. He operates a portable band-saw mill, does general woodworking, plays the fiddle and searches for rare prairie plants, as well as growing shiitake mushrooms. He is also struggling with configuring a Usenet news server for his local ISP. His e-mail address is email@example.com.
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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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