how to use w

\ W matches a letter, number, or underline, it is equivalent to [a-zA-Z_0-9] \ s matching an empty character \ D matching a number \ B matching the beginning and end of a word ^, $ is the unit of action to lock the location, while \ B locks the

Preface: (for a few additional questions, click here to skip>) As mentioned in the abstract, regular expressions are a huge knowledge system. They are neither a simple metadata table nor a few words clear. Someone commented, "... if there have been

 Shadow volumes generation algorithm classification: OpenGL 811 people reading comments (0) Collection reporting algorithm bufferlist test blendshader is a 3D beginner :) not a technical encyclopedia, I will talk about the shadow generation

Start the visual editor from Shell VI filename indicates the shell to start the VI editor and pass the filename parameter to it. If the file exists, the VI editor interprets it as the file to be opened. If the file does not exist, the VI compiler

1. Brief Introduction SVM involves many things. If we need to fully understand it, we need to understand empirical risks and confidence risks, VC Dimension theory, and derive the optimal formula, the Laplace solution for optimal solution, and the

      Forwarding VMware vsphere development (1) install and configure the running environment of the VMware vsphere Web Services SDKAuthor: fliggy (http://hi.baidu.com/imlidapeng) I. Preparation To use the VMware vsphere Web Services SDK to develop

T c p/I p and I n t e r n e tIntroductionThe implementation of t c p/P in Windows 2000 provides an important point-to-point connection mode for the connection between Microsoft wi n d o w s network and u n I x. To thoroughly understand the network

Http://www.cnblogs.com/ylqmf/archive/2011/10/10/2205298.html Fdisk-L # check the number of hard disks on the current system. Disk/dev/SDA: 36.4 GB, 36401479680 bytes255 heads, 63 sectors/track, 4425 CylindersUnits = cylinders of 16065*512 = 8225280

Open/File OperationsF = open ('/tmp/hello', 'w ') # Open (path + file name, read/write mode) # Read/write mode: R read-only, R + read/write, W new (will overwrite the original file), a append, B binary file. Common Mode For example, 'rb', 'wb ', 'r +

C # users often ask two questions: "Why should I write anotherCodeTo use features built in windows? Why can't I complete this task for me without relevant content in the framework ?" When the Framework Team built their. net section, they

Cipher Display or change the file encryption on the NTFS Volume. If it is used without parameters, the cipher will display the encryption status of the current folder and Its contained files. SyntaxCipher [{/E |/d}] [/s: dir] [/A] [/I] [/F] [/q]

This free, DW exclusive tutorial explains how to use the powerful visual editor VI. It uses a fast "clever form" method, so that you do not have to spend a lot of time to master VI. You will soon learn how to move the cursor, edit the text, use the

Implement Google Search: Cstring strkeyword = _ T ("msdn"), strgoogle = _ T ("http://www.google.com.hk/search? Sourceid = chrome & Ie = UTF-8 & Q = "), strbrowser = _ T (" C: // program files // Internet Explorer // iexplore.exe "); // Method 1: //

No matter how many files you have to edit, you can process them in vim. You can define a list of files to be edited, switch from one file to another, or copy and paste between different files. A. Edit another fileB. File ListC. Switch to another

VI Editor I. UNIX editor Overview Editor is an important tool for using computers. In various operating systems, editors are essential components. UNIX and similar IX The operating system series provides a series of ex editors, including ex, edit,

Let's talk about Objective-C warnings and objective-c. Address: http://onevcat.com/2013/05/talk-about-warning/   A programmer with exercises cares about the warning of his own code, just like a dead cockroach on the side of the rice bowl. -- @

Add a new hard disk to CentOS Connect the hard disk to the server, start linux, and log on as root.For example, if I add a new SCSI hard disk, We need to divide it into three areas: # Fdisk/dev/sdb enters the fdisk mode: Command (mforhelp): p //

Summarize some of the practical functions that we use the vim editor at ordinary times, which will be updated in the future.1. visual plug-in The visual plug-in is actually equivalent to a bookmarks. For example, in a long source code file, we can

Learning vi and vim editors (5): go beyond the barriers of basic knowledge This chapter summarizes the previously learned editing commands such as "c", "d", and "y", and learns some new knowledge: other methods for entering vi, use a buffer to store

Vi and vim Editor (7): ex editor Overview (2), vimex Next, I wrote an article to learn about the ex editor. Change the buffer Name:You can use ": w new_file_name" to save the current editing buffer as a new file. In this way, the current editing