Standard IO
Stdin, stdout, and stderr are standard inputs, standard outputs, and standard errors. Windows and * nix.
By default, the standard input is equivalent to the keyboard input, and the standard output and standard error are equivalent to the screen output.
In C language, these three are FILE * types (FILE pointers). For example, if you use printf, the content is directly output to the standard output, which is equivalent to fprintf (stdout ,.
Note: this series of articles describes the similarities and differences between windows and unix-like operating systems (* nix) for programmers, and focuses on * nix. This article covers program installation, daily operations, editors, IDE, pipelines, GUI vs CLI.... The purpose of this article is to guide experienced windows programmers to smoothly transition to * nix
In windows, we have the following procedure: log on to the system, browse the file system, find the program execution, find the document, and open it. Then exit the system.
Login
In * nix, there are two login Methods: one is to log on directly on the local terminal, and the other is to remotely access through ssh or telnet. Either way, after you enter your username, password, and successfully log on, a prompt appears in front of you. Generally, it is
to implement a multi-task operating system. In this way, Unix can process multiple tasks in parallel. Therefore, from the historical perspective of operating system development, every seemingly simple logic is a great leap. I still think it is very mysterious. It is necessary to copy a daemon concept to explain it to myself.
1. What is daemon process)Daemon is a special process running in the background. It is independent of the control terminal and periodically executes a task or waits to pr
x86_64, i386
15.10
Wily
x86_64, i386
Sles
Version
Supported Platforms
12
x86_64
In the CentOS architecture, in order to be able to install with Yum, it can be installed in the following ways:
Stable version Installation
Need to populate the stores of Yum, construct a file called "/etc/yum.repos.d/nginx.repo", the file needs to fill in the following:
[nginx]name=nginx repobaseurl=http://nginx.org/packages/OS/OSRELEAS
proceed to the client.Set the clientFor Linux (or other * nix), the client and server software are the same. For Windows, MAC, and other platforms, goHttp://www.loria.fr/cgi-bin/molli/wilma.cgi/relFind the corresponding client software. Here I will first talk about how to do it in Linux (* nix:
Set the environment variable CVSROOT:
$ Export CVSROOT =: pserver: laser @ the_serv
A hidden threat to * nix WEB Servers
From: https://www.virusbtn.com/virusbulletin/archive/2014/07/vb201407-Mayhem0x01 Introduction
Websites and even servers are becoming more and more popular. This infection is usually used to intercept communication, black hat SEO, leeching downloads, and so on. In most cases, such malware is composed of relatively simple PHP scripts. But in the last two years, many more complex malware families have been discovered.
Outline
Integrated Environment
Compiler (gcc)
Debugger (gdb, printf)
Dependency Management (make)
Search code (grep)
Code Editor (vim)
Code redirection (ctag, CSAG)
Taglist)
Auto-completion (^ N, ^ x ^ o)
Compilation error/code correspondence (make + vim)
Programmer Manual (man)
Starting from this chapter, we will begin to talk about the issues that everyone is most concerned about, that is, how to write programs under * nix?
The following uses C/C
Document directory
Getting started
Working with CVS in Eclipse
Sending files to the server
Retrieving a former version of a file
Don't forget to UPDATE!
Importing an existing project
Setting up CVS in Adobe Flex
ThisTutorial will show you how to get started using CVS (ConcurrentVersions System) and how you use it. CV
Platform contention: Windows or *nix
The book "Orange ' s: an implementation of an operating system" from Yu Yu
Reading here, readers may find that the words "If you use Windows" or "If you use Linux" often appear in the book. Sometimes such words may even affect your reading, and if so, please forgive me. I try to take care of as many readers as possible, but for everyone, one has to face a choice--under what platform. The first edition of this book
This article is for vi, because it and its variants are the most widely used on * nix, but the most frustrated users. The user follows a certain installation or configuration instruction until the user encounters: "Use vi to edit xxxx. conf, add xxxx to it. "inexperienced users cannot continue, even exiting vi is a challenge.
Although * nix has other editors that are more suitable for windows users, they a
Article Title: How to remotely connect to XServer under NIX. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
Server: Red Hat Linux
Terminal: Xmanager 1.3.9
Usage:
Operations on the server:
------------------------
1. Modify/etc/X11/xdm/Xaccess and set the following lines:
# * # Any host can get a login windo
Platform competition: Windows or * nix
This article is excerpted from the book Orange's: the implementation of an operating system.
Readers may find that the words "if you are using Windows" or "if you are using Linux" often appear in the book. Sometimes such words may even affect your reading. If so, please forgive me. I try to take care of as many readers as possible, but for everyone, there must be a choice-Under what platform to develop. The first
file:Ks.cfg:OpenSSL passwd-1-salt Root #生成用户密码Download: System-config-kickstartProduction Ks.cfg:Graphical interface:System-config-kickstartModify the installed Ks.cfg file:/root/anaconda-ks.cfgVerify the validity of the KS file:Ksvalidator ks.cfgCopy the configuration file to the Cobbler startup directory:CP ks.cfg/var/lib/cobbler/kickstarts/To import a configuration file:Cobbler profile Add--name= ' centos-7-base '--distro= ' centos-7-x86_64 '--kickstart=/var/lib/cobbler/kickstarts/ Ks.cfgRef
Steps:First:After receiving Sigterm, now the server listens for socket stop acceptBut it doesn't stop listen, which is key. (so the SYN of the client-initiated TCP connection is not synack, just keep waiting and not be rejected )?Second:The existing process receiving sigterm continues to handle the socket that has been received.Exit until the end of processing is complete.Third:After receiving Sigterm, send sighup (to ensure that the existing server process has stopped the accept).Fourth:After r
Continue with the previous article about my terminal environment. This introduction zsh and Z, in fact, is not limited to OS X and is available in all *nix systems.
Zsh
Zsh as a substitute for bash, naturally a lot of people ask: why ZSH? The zsh Workshop has a long list of functions to answer this question. Here is the reason why I choose zsh, of course, also introduces zsh powerful function.
Compatible with bash. This makes switching to zsh witho
For forum discussion, please see: http://community.csdn.net/Expert/topic/3492/3492097.xml?temp=.1520502
The idea of CVS is the most powerful and best CVS client I have ever seen, and the integration of the project is almost seamless. If a team uses idea uniformly, it will greatly reduce the learning burden of team members in the CVS tool alone. Idea's
It is difficult to use pserver-based Remote Authentication in CVS. You need to define the server and user group, user name, and password,
Common login formats are as follows:CVS-D: pserver: cvs_user_name@cvs.server.address:/path/to/cvsroot LoginExample:CVS-D: pserver: cvs@samba.org:/cvsroot Login
It is not safe, so it is generally used as an anonymous read-only CVS
How the CVS client is used in eclipseBasic situation: In Eclipse has been self-contained CVS client plug-in, directly can link to the CVS server, but need to pay attention to the link information, must be with the previous on the CVS server, set the information consistent;How do I link a
When you build your Java Automation Test integration environment, whatever you do, you will choose a source control tool, such as SVN,CVS,VSS, etc. but if you use the Eclipse tool, it is recommended that you use the CVS Source Control tool because it comes with the CVS client plugin itself. can be used directly (for specific usage, refer to: Java Automation Test
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