how to use w

Vi and vim Editor (7): ex editor Overview (2) 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 result can

(The learning references are mainly introduction to algorithms.) The first is the nature of the red and black trees. A binary search tree is a red-black tree that meets the following requirements. 1) each node is either red or black. 2) The root

C # users often ask two questions: "Why should I write additional code to 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 part, they evaluated

Capture warning information and exception information in Perl and write logs This article describes how to capture warning information, exception information, and write logs in Perl, this article provides practical examples of capturing warnings-not

Common gcc/g ++ commands and gcc Command Options Common options for gcc/g ++ commands (option description) -O FILE specifies the output FILE name. This option is not required during compilation of the target code. If FILE is not specified, the

As a system administrator, you may often need to check which users are active in the system. Sometimes you even need to know what they are doing. This article summarizes four methods for viewing system user information (by ID. 1. Run the w command

Real-time noise reduction in Unity3d games-Research and Implementation of Square Enix documentation, unity3denixLet's take a look at the SE Technical Documentation's decision on noise reduction,This test scenario:The article mentions three main

Mount the partition where FreeBSD is located in Linux A problem occurs when Gnome is installed on FreeBSD. As a result, the system cannot enter--. Therefore, you cannot download a livecd, mount the shard where FreeBSD is located, and modify the

Regular Expression \ w \ d interpretation, Regular Expression After reading the descriptions of many related regular expressions, I found that the meaning of \ w is equivalent to [0-9a-za-z]. (Based on the regular expression of the classic tutorial

ES6 Babel is correctly installed in JavaScript, es6babel This document describes how to install Babel6.x ~ First, you can use Babel online conversion https://babeljs.io/repl/ Then go to the topic: Install Babel (command line environment, for Babel6.

Basic knowledge of qt5, qt5 QWidget wQLineEdit edit; Edit. show (); // if no such sentence exists, the edit box is displayed in the upper left corner of the parent window.Edit. setParent (& w); // use w as the parent window and display it aboveW.

As the saying goes, it will sooner or later be paid back. The Linux Account owed by the university should be paid back now. After I finished studying Linux in college, I almost never touched it again. I have handed it all back to my teacher. Now we

Let's talk about pts/0 first. In man, we say this: ptmx and PTS-pseudo-terminal master and slave. PTs is a so-called pseudo terminal or virtual terminal, the specific manifestation is that you open a terminal, which is called pts/0. If you open

Linux cainiao records common Linux commands and miscellaneous for your reference. Some useful shortcut keys the cursor jumps to the end of the command. jump the cursor to the start of the command clear all content from the front of

[LINK] the aesthetic world of Mathematics Last time, I introduced the principle of Bayesian inference and today I will talk about how to use it for spam filtering. ========================================================== Bayesian inference and

Author: yiming GongHttp://security.zz.ha.cnDisclaimer: The above author and HTTP address must be retained for any form of excerpt Solaris log IntroductionAssume that you are a website administrator using the Solaris operating system. One

2011-06-14 wcdj (1) ex command(2) Use ex for editing(1) line address(2) define the row range(3) line address character(4) Search Mode(5) Redefine the location of the current row(6) Global Search(7) combined ex command(3) Saving and exiting files(1)

2011-06-16 wcdj   (1) Confirm replacement(2) Context-related replacement(3) pattern matching rules(1) usage of metacharacters in Search Mode(2) Some pattern matching examples Global replacement actually uses two ex commands -- g (global) and S

Use STL to implement DFS/BFS Algorithms -- Push box games (1)A box-pushing game must have been played by many friends. Simply put, in the M * n range, there are K boxes and K destinations, you can only use the push method to move the box. You cannot

Original address: http://iregex.org/blog/regex-optimizing.html   If you want to challenge your own regular expression level to implement some special effects (such as using regular expressions to calculate prime numbers and solve linear equations),