Update-alternatives is a tool dedicated to maintaining system command links in Linux systems, which makes it easy to set which command to use by default, which software version, for example, we have both open jdk and Sun JDK Two versions installed in the system. And we want the system to use the sun JDK by default, what should we do? Through the update-alternatives can be very convenient to achieve.To view
Word, tool update-alternatives is the function of the management system under the similar function of the symbolic link, the way is to have a similar function of the program, not directly call the program, but with a unified symbolic link to call, as to the symbolic linkWhich of the similar function programs is pointed to, is configured and managed by the tool update-alternatives.It's very abstract, so let's take an example and see what's going on nat
Alternatives and update-alternatives seem to be the same tool (different for each Linux distribution), so here's an example of update-alternatives. Update-alternatives is a very useful tool in Linux, not only in the Debian series, but also in the Redhat series.Linux has grown to today, and there are so many available s
Starting from this section, we will start our DSL journey. First, make sure that you have installed the Visual Studio SDK and use Visual Studio 2008. we will first create a simple DSL project to understand the DSL development environment and process.
1. open. net, new -- Project, click another project type -- extensibility ). the following lists the projects of
DSL Concept
Martin FowlerDefines a domain-specific language (DSL) as "a computer language that's targeted to a particle kind of problem, rather than a general purpose language that's aimed at any kind of software problem"
Domain-specific agesAren't a new idea by any means. dsls have been around since long before the start of computing. People have always developed specialized
Vocabularies for specializ
Set DSL connection manually in Ubuntu, and set dsl manually in ubuntu
After installing Ubuntu, I found that the DSL connection of the graphic interface was useless and I was depressed for several days. I think it would be a waste of 120 hours of mobile traffic every month. Just as I wanted to return to the Windows system, I found a good way to manually set up a c
The previous section describes the graphical symbols of vs.net DSL, including charts, editors, and shapes. in this section, we will look at the relationship between a single symbol and metadata. How are they mapped together.Model Elements are represented by shapes, while domain relationships are represented by connectors. graphical ing defines that model elements are visually represented by shapes, while connector ing defines how links are visually re
Gradle DSL method not found: ' Runproguard () ' ErrorThis error occurs because in the new version of Gradle, the Runproguard () method has been discarded and replaced by minifyenabled, So just change the runproguard in the Build.gradlew file under each module to minifyemabled. Such as:Gradle DSL method found: ' Android () ' ErrorAs with the last error, this is also because the Android () method has been dep
Example of JavaScript DSL fluent interface (called using a chain), dsl chain
After carefully studying DSL for a while, I found that one of the most interesting things in JavaScript is probably chained call (Method chain, that is, Method Chaining ). Interestingly, Martin Flower points out:Copy codeThe Code is as follows:I 've also noticed a common misconception-pl
Http://tech.ddvip.com/2008-12/1229654190101204.html
The basic idea of domain specific language/DSL is "Seeking for specialization", which does not cover all software problems as the general target language does, it is a computer language dedicated to a specific problem. DSL was originally and ultimately a dream for programmers, just as January 1. People have been talking about
what is development in specific fields and DSL development in specific fields is used to solve repeated problems, summarize and analyze each problem to solve the same problem at one time. frequently changing aspects can be expressed in a special language. for this special language, we can create a model or expression and insert it to a fixed part. for our solutions in the software industry, the fixed part adopts the traditional design and implemen
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DSL Architecture
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Books
Model-driven development (MDD), software factory, and domain-specific modeling (DSM) are all highly abstract development methods, the languages used by these methods are specific domain languages (
Microsoft started to provide DSL in vs2005sdk, and also published a book dedicated to writing Visual Studio DSL. This book details the DSL content, in the current environment where there are few DSL books, it is good to have such a book for reference.
I have read this book a few years ago. Since I recently began to c
Author: liguisen
Blog: http://blog.csdn.net/liguisen/
Damnsmalllinux (DSL) is a livecd version of Linux. Simply put, it is burned to a CD and then started from the CD in the PC, just like using a complete operating system installed on a hard disk.
The biggest difference from the operating system installed on the hard disk is:
All the changes you make are limited to the memory, because it virtualizes A ramdisk in the memory. Therefore, when you res
Groovy language is most proud of the characteristics of the DSL, the definition of DSL and classification, advantages, etc., it is not to be elaborated in this article, you can access the Internet, there is a large number of this convenient introduction. The groovy language is a great way to design your internal DSL, and in this context, my Groovy Discovery serie
update-alternatives--Management soft Connect/Word linked (Symbolic links)
Command format
update-alternatives [Options] Command
Detailed description
Update-alternatives can be created, deleted, repaired, soft-connected, and can display information about existing soft links, all of which constitute the Debian alternative system (
Sina technology news China broadband application development forum and China tripbench play/IPTV Annual Forum April 18 ~ Held in Beijing on the 19th, the mission is to solve the technical, commercial, market, service, content, and regulatory problems faced by operators in the process of providing video services through broadband.The following is a keynote speech by Robin mersh, chief operating officer of DSL forum, entitled "IPTV and triple play: opti
Ubuntu update-alternatives (soft connection management), ubuntualternatives
Update-alternatives-manage soft connections/character links (symbolic links)
Command Format
Update-alternatives [options] command
Detailed description
Update-alternatives can be used to create, delete, repair, and soft connections. It c
[Switch] domain-specific language (DSL)
The basic idea of domain specific language/DSL is "not seeking for specialization", which does not cover all software problems as the general target language does, it is a computer language dedicated to a specific problem. People have been talking about DSL since the beginning of computer invention. The UNIX comm
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