not exit

Basic vi operations:1. Make sure you are in the main directory. Create a file named vitext in your home directory.>>$ Cd>>$ Pwd> Vi vitext2. When a vi file is opened, it is automatically in command mode. Press the I key (insert) or the key (append)

In command mode, the upper-case letter Z is used for two connections. if the current edited file has been modified, Vi will save the file and exit, and return to shell; if the current edited file has not been modified, Vi exits directly and returns

Related links: linux that thing (1) http://www.2cto.com/ OS /201205/131407.html?linuxthat thing (2) http://www.2cto.com/ OS /201205/131408.html?linuxthat thing (3) http://www.2cto.com/ OS /201205/13140 Related links: linux (1) events (2) http://www.2

I. vi introduction vi is the most common full-screen editor in the unix world. In linux, it uses vi's enhanced vim version. vim is fully compatible with vi, and vi is & quot; visualinterface & quot;. It can I. Vi introduction Vi is the most common

As we all know, the current time-sharing operating system can run multiple programs on a single CPU, making these programs seem to be running at the same time. Linux is such an operating system. In linux, each running program instance corresponds to

1. Kernel objects Each kernel object in Windows is just a block of memory that is allocated by the operating system kernel and accessible only by the operating system kernel, and applications cannot locate the data structures in memory and change

Hurry and beg for help: the problem of thread resource release-Linux general technology-Linux programming and kernel information. The following is a detailed description. I have been suffering from a problem that may cause me to lose my job for two

First, the roleThe role of volatile is to ensure that this directive is not omitted due to compiler optimizations and requires each direct read value as a directive keyword.In short, it prevents the compiler from optimizing the code. For example,

How to exit VI in linux-general Linux technology-Linux programming and kernel information. The following is a detailed description. You can use one of the following methods to exit Vi and return to shell after editing the file. In command mode, the

Introduction: MySQL databaseOne server acts as the master server while one or more other servers act as the slave server. The master server writes updates to the binary log file and maintains an index of the log file to track log loops. When an

  Following the previous introduction of a Japanese Open-Source Software (this software can only implement QRCode) Original article: Java implements code and decoding of the QR code QRCode. Now we find another excellent open-source tool-ZXing, it is

Linux/Unixshell automatically sends AWRreport to observe the Oracle database performance. the awr feature provided by Oracle provides us with a nearly perfect solution. with awr features, we can extract awr reports from the database at any time.

application.exit (); // notifies all message pumps that the pump must terminate and close all application windows after the message has been processed. // supported by the. NET Compact Framework. form.close (); // Close the window (the

MySQL supports unidirectional and asynchronous replication. During the replication process, a Linux server acts as the master server, and one or more other servers act as slave servers. The master server writes updates to binary log files. MySQL

CSRF (Cross-site request forgery), Chinese name: Cross-site request forgery, also known as: one click attack/session riding, abbreviated as: CSRF/XSRF.What can CSRF do?You can understand the CSRF attack in this way: attackers steal your identity and

(1) AutoThis keyword is used to declare that the lifetime of a variable is automatic, that variables defined in any class, struct, enumeration, union, and function are not treated as global variables, whereas variables defined in a function are

Defects in Wi-Fi fast transfer verification of Jinshan kubernetes for Android Bugs in the process, non-technical issues, non-trivial flow, not awesome. Kingsoft kubernetes comes with the wifi fast transfer function. When this function is enabled,

1: When the main process exits, no matter the child, grandchild ... Threads will exit. However, threads created by a child thread say that, for example, the following sub-thread creates a grandchild thread, the enters upgradeable exits, and the

1. Multi-threaded creationImport threadingt = t.theading.thread (target, args ...)T.setdeamon (True)//Set as DaemonT.start (), starting threadT.join (), which blocks the current thread, and does not exit even if the current thread ends. Will not

Do not exit the loop prematurelyWhen we try new things, we always encounter all kinds of difficulties, and different people will quit after a different number of times. What programmers like to say is that we are all in the For loop, the difference