Change Keyboard Commands

By completing this chapter, you can do the following things: Change the output of the Unix command to the file. Prints the error message generated by the UNIX command to the file. Change the input of UNIX commands. Define a filter using some basic filters such as Sort,grep and WC. 9.1 Input and output REDIRECT Introduction shell provides the ability to redirect the input and output of a command. The output of most commands is output to the terminal screen, such as date,ls,who and so on, many commands are entered from the keyboard, commands include mail ...

We can often see a variety of robots in science fiction films with human beings in the same stage, and human freedom of communication, and even smarter than humans. People would like to know how such a man-made machine is done, can we really create such a robot now? Joking, I'm not going to be able to explain this right here, but from another point of view it's simple to communicate with the robot. This is through the voice to realize the interaction with the machine, interaction of an operation, human and robot communication, one of its core is the recognition of speech, that is, the robot must first understand the Then this article will talk about Shimonoseki ...

class= "Post_content" itemprop= "Articlebody" > was just a game device when the Xbox was unveiled 3,608 years ago. But over time, Xbox 360 not only has more and more good games, multimedia features and applications are also gradually joined. By the year 2008, Microsoft has made the Xbox interface much closer to Zune and Windows Media C ...

Ultrabook is expected to change the mobile computing industry in 7 ways, including lightweight profiles, long battery endurance, touch-screen and speech recognition, the US it website PC wrote today. In the 2012 International Consumer Electronics Show (hereinafter referred to as "CES"), Ultrabook became a new tablet computer. Of course, there are also many new tablet computers released this year, but 2012 will be ultrabook years. So, Ultrabook is the notebook of the rebirth of the fire, or just the tablet computer revolution desperate ...

Once upon a time, computers could only be used through the command-line interface. If you want your computer to do something, you need to remember all the commands and enter them exactly. When the graphical user interface became popular, people no longer needed to memorize commands. What the user wants to do is displayed on the screen. To get into a software, just double-click the icon and want to copy the file, just right-click and click Copy. "Memory" is gradually replaced by "recognition". With the popularity of smartphones and tablets, hand gestures are becoming popular. The user can touch the screen directly and manipulate the object. Although this is a more natural one ...

"Editor's note" This article is reproduced from the @ zi mu yoyo personal blog. When touch-screen devices, such as smartphones and tablets, become popular, gesture manipulation is becoming more prevalent. This allows the user to directly touch the screen and manipulate the object. Although this is a more natural mode of human-computer interaction, gesture manipulation is still a problem in usability. So we need to design gestures that make it easier for users to understand. Once upon a time, computers could only be used through the command-line interface. If you want your computer to do something, you need to remember all the commands and enter them exactly. When ...

Since the birth of a personal computer, the mouse has become a way of interacting with computers. The computer is more and more functional, mobility is getting better, but the interactive way is really no change. Recently, revolutionary products and inventions bring a new human-computer interaction experience. With the spur of maximum output, the mouse and keyboard will one day be discarded by us. The following embedded technologies may change the way we interact. Multi-touch mouse and notebook tablet by clicking to achieve the purpose of double-clicking the icon and dragging the window, and multi-touch can be simply a simple finger action to achieve complexity ...

May 23-May 25, 2012 cloud base of China Cloud Computing Conference opened the curtain, show cloud practice, explore cloud trend, share cloud future. The cloud base shows the latest technologies and new products in the field of cloud computing, and discusses the development trend of cloud computing, the great value of large data, the energy-saving of data center in cloud times and so on. 　　Zhang Fan, senior market manager at the top of the cloud, brought a keynote speech on "A new era-cloud era." Zhang Fan: I introduce myself, my side is the Zhang Fan of the market department of Cloud Times. The cloud ERA and the last ...

We believe that the goal-oriented design method consists of 4 p, i.e. process, pattern, principles, practices (processes, patterns, principles, practices), and I will discuss the first 3 p. Interaction design is generally a difficult and messy task, and interaction designers are often asked to imagine and define in a tight schedule a possible use of the latest technology, and no one has seen, we must have a deep understanding of the complex areas of products, must balance the competitive priorities, Must understand the constraints of the technology used and the machine ...

This article is to achieve the goal: the perfect control of laptop LCD screen saver and black screen, specifically to achieve 1. Normal mouse 10 minutes without action, the LCD into the screensaver, 15 minutes without action, the LCD completely power off 2. MPlayer when watching movies, constantly do not screen saver power. 3. When pressing the ALT, lock the screen immediately and power off the LCD. Apply to the crowd: Linux users (nonsense, I do not have the conditions to test BSD and other *nux), GNOME users, Compiz users, using the command line to start the MP ...