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By completing this chapter, you will be able to do the following: Use the while statement to repeatedly execute a piece of code when the condition is true. Use the loop statement to repeatedly execute a piece of code until the condition is true. Use the interactive for statement for loop control. 1. Brief introduction to the loop objective: Repeat the execution of a list of commands. control; a return value based on a key command. Three forms: While ... do ... do loop ... do ... do.

Son of Grid engine is a highly scalable and flexible distributed http://www.aliyun.com/zixun/aggregation/13808.html "> Resource scheduling batch or interactive job cluster or desktop farm." It is a community project that continues Sun's grid Engine. This is a competitive proprietary system and provides better scheduling functionality and scalability, unlike Torque, Slurm, Condor, and ...

"Task Analysis and Requirements"  This task is the extension of the entire training project, if the server cluster has a Windows Architecture server, we will configure the Samba service to resolve the http://www.aliyun.com/zixun/aggregation/ 13440.html "> Shared information between heterogeneous systems  provides directory/l-w_share/public, implements SMB service sharing, shares the name public, allows EC, Tom Group members to read and write  ...

The friendly interactive shell, just like its name, fish is a very friendly shell, highly recommended! Use the command sudo apt install fish to install it. When you are done, run the command fish to switch to fish and exit back to bash. A brief introduction to its advantages: automatic completion, syntax highlighting the automatic completion of bash is only the completion of the full command, the path, if you want to complement the full variable, parameters, etc., usually need to use complex combination ...

&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; There are several reasons: maybe you use Flash, for Linux Flash has a lot of problems, the main is CPU occupancy rate is high; if you see a movie with 3D, then it is the graphics driver problem, currently only Windows has a home video hardware acceleration Drive (because Microsoft pays) If you are in the graphical interface ...

Deb is the http://www.aliyun.com/zixun/aggregation/33836.html ">debian package format file name extension (equivalent to redhat rpm), like the name Debian, Deb is also named for Debra Murdock, who is the wife of Debian founder Ian Murdock. The Debian package is a Unixar standard archive that will package file information as well as package content through ...

4.1 Using the system terminal in the desktop environment, you can use the Terminal program to enter the traditional command line operation interface, in the main menu of the system select "Start" → "utility" → "terminal program" or on the panel click the "Terminal Program" icon to open the terminal. Konsole is a Terminal program window. by typing the shell command here, you can quickly complete the appropriate task. Use terminal work to exit the terminal program, click the "Close" button in the upper-right corner of the window, or type exit at the shell prompt, or press the shortcut key.

Today, let's take a look at the VMware Workstation linuxhttp://www.aliyun.com/zixun/aggregation/30744.html "> Sharing Internet Problem, after installing CentOS, Network settings are required to access the Internet! Of course, if you have a router, directly in Linux to obtain IP automatically can access the internet! Or to specify the router's IP address and gateway, but generally we are using ADSL dial-up, ...

C programming related file suffix. a&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Static library (archive). C C Source code (requires compilation preprocessing). h C Source Dock file. I c source code (without compiling preprocessing). O To ...

Wxwidgets is an open source Cross-platform c++++ Architecture Library (framework) that can provide GUI (http://www.aliyun.com/zixun/aggregation/18378.html > Graphical user interface) and other tools. The current 2.x version supports all versions of Windows, UNIX and OS with gtk++ or motif. A support powering version is under development. Wxwidgets in the most ...

ReadLine (PHP4 >= 4.0b4) readline---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Read string Syntax: String ReadLine ([string prompt]) Description: This function returns a string from the user, you can specify a hint (prompt) user's ...

I'm going to start learning Windows Azure. I installed the azure SDK, then under the "Cloud" tab, select the Windows Azure template, create a project, and then create a web role. I added only one tag to the ASPX file, but when I tried to run the project I got the following error: When I switched to the Output window, I got the error message: Windows Azure Tools: Initializing Windows ...

Note that before you configure these parameters, you should fully understand the implications of these parameters in order to prevent the pitfalls caused by the misuse of the cluster. 　　In addition, these parameters need to be configured in Yarn-site.xml. 1. ResourceManager correlation configuration parameter (1) yarn.resourcemanager.address parameter explanation: ResourceManager the address which exposes to the client. 　　The client submits the application to RM via this address, kills the application, and so on. Default Value ...

As we all know, the big data wave is gradually sweeping all corners of the globe. And Hadoop is the source of the Storm's power. There's been a lot of talk about Hadoop, and the interest in using Hadoop to handle large datasets seems to be growing. Today, Microsoft has put Hadoop at the heart of its big data strategy. The reason for Microsoft's move is to fancy the potential of Hadoop, which has become the standard for distributed data processing in large data areas. By integrating Hadoop technology, Microso ...

One of the features of cloud computing is the ability to move applications from one processor environment to another. This feature requires a target operating system to receive it before moving the application. Wouldn't it be nice if you could automate the installation of a new operating system? A well-known feature of the intel™ architecture system is the ability to install Linux automatically. However, installing Linux automatically is a tricky issue for System P or IBM power BAE using the hardware management console. This article discusses the solution of ...

Cloud Computing (cloud computing, a kind of distributed computing technology, its most basic concept is to automatically split the huge computing process into countless smaller subroutines through the network, and then send the processing result back to the user by the large system of multiple servers after searching and calculating and analyzing. Through this technology, network service providers can in a few seconds, to deal with tens of millions of millions of information, to achieve the "super computer" and the same powerful network services. The simplest cloud computing technology is ubiquitous in Web services, such as search engines 、...

Vadim Truksha, an IT infrastructure designer at software company Altoros Systems, published an article in the United States on The Cyberworld. Compare this article with four cloud platforms, CloudStack, Eucalyptus, vCloud Director and OpenStack, for a brief analysis. The article is as follows: Considering the great potential of cloud computing to increase efficiency, significant cost savings, scalable infrastructure and high performance, and secure data storage, cloud computing ...

kubernetes learning record (7) - Elastic scaling and rolling upgrade. Elastic Scalability Elastic scaling refers to adapting to load variations and providing resources in a resilient, scalable way. Pod's flexible scaling is to modify the number of Replica Replicator Controller. Can be achieved through the Kubectl scale command. Create Replication Controller test-rc.yaml apiVersion: v1 kind: Replicatio ...

Community operators work rather cumbersome, after all, the Internet is a virtual, digital things. It is quite difficult to operate in a full swing. Operators like Qigong father: "The gas back like the tide, Tianjin flow if alcohol", the atmosphere of good operation, the community can be surging! Community Operation Weirui Complex, but pruning cut leaves, flowers blowing willow, in fact, also rule-based, laws! Summarized as follows: The community operators mainly work two major events: content operation, user operation. First table Community Content operation target group to determine, the community theme content has been guaranteed, after the product development, the operator on the powder ...

class= "Post_content" itemprop= "Articlebody" > Now, almost everyone can recognize the iconic Amazon logo, but many people do not know that the logo behind the fact that there are many deep meaning, Even the company's initial strategic plan ... Recently, the United States well-known technology media "Business Insider" for us to pick out the "17 have hidden meaning of well-known corporate logo", the specific contents are as follows: ...