Linux

In Linux, eclips itself can compile C/C ++, which makes me very pleased, ^ _ ^. However, OpenGL has been compiled.ProgramIt cannot be compiled. An error is returned:... undefined reference to 'glbegin '..... The result is that all the glut

The system allows a process to create a new process. A new process is a sub-process. A sub-process can also create a new sub-process to form a process tree structure model. All processes in the Linux system are also in a tree structure. The root is

GroupsGroups gliethttp: view the group where the gliethttp user is located and the group membersWhoami The/etc/group file contains all groups.All usernames in the/etc/shadow and/etc/passwd Systems 1. Explanation of/etc/group; /Etc/group A

Source command usage:Source filenamePurpose: read and execute the command in filename in the current bash environment.Note: This command is usually replaced by the "." command.Example: Source filename or. filename (with spaces in the middle)   The

-- "How long does the C language take to learn ?" If you have several years of programming experience in C/C ++ProgramThe answer may be one week, three or four days... Or less, not to mention the scalpers. Most people often forget the hardships of

1. The block number of the inode file. During the Linux kernel read and write operations, the corresponding disk block is operated based on the disk block number in the inode to complete file read and write. The MV command is used to move a file.

After learning about Linux platform devices and drivers in the first three articles, this article describes how drivers automatically generate device files. If you have written a Linux driver, you may know that a kind of device in Linux is called a

Syntax:Export [-p] [variable name] = [variable setting value] Parameter description: [-P] lists all environment variables that the shell assigns to the program. Command function:Display or set environment variables.   Example: Export Path

1,Run the file checkout to the local directory.SVN checkoutPATH (path is the directory on the server)Example: SVN checkout SVN: // 192.168.1.1/Pro/DomainAbbreviation: SVN Co2,Add new files to the version LibrarySVNAddFileExample: SVN add test. php

Here, a folder is shared between Windows and Linux on the vmwarevm. The following describes how to implement it: 1. Install VMware. workstation. 2. Install fedora10. 3. After completing the first two steps, choose VMware> toolbar> Virtual

Compile:The first step is to pre-compile. The-e parameter allows GCC to stop the compilation process after preprocessing:Gcc-e hello. C-O hello. IPre-processing macro definition inserted into Hello. I Step 2: Compile hello. I as the target code,

Virtual Memory --- The Linux operating system uses the virtual memory management technology, so that each process has an independent process address space, which is 3 GB in size. Users can see and access virtual addresses, the actual physical

The send function in the socket can send strings, but cannot directly send struct. Therefore, the sender converts the struct into a string, then sends the string to the receiver using send, Recv the string at the receiving end, and then converts it

Server: # Include # Include # Include # Include # Include # Include # Include # Define bufsize 1024Int main (void){Struct sockaddr_in local_addr, remote_addr;Int sockfd;Int server_ip, nrecv;Int Alen;File * FP;Char buffer [bufsize]; Memset (&

1. closesocket (usually does not close immediately and goes through the time_wait process) to continue to reuse the socket: Bool breuseaddr = true; Setsockopt (S, sol_socket, so_reuseaddr, (const char *) & breuseaddr, sizeof (bool )); 2. If you

No picture, no truth, first:   Each process stores a file descriptor table in the PCB. The file descriptor is the index of this table. Each table item has a pointer to an opened file, an opened file is represented by a file struct in the

This is my first blog. I would like to share with you one of my recent articles. I am very happy to discuss with you that csdn is a place where Crouching Tiger, Hidden Dragon, and many excellent articles, I am ugly here ~~~   The following is a lot

Author:North SouthFrom:Linuxsir. orgAbstract:In File Management of Linux operating systems, file or directory management in command line mode (in the console or terminal) involves the concept of path, this is the most basic foundation for Linux

Turn: http://blog.csdn.net/noodies/article/details/5798434 Opencv is an open-source computer vision Library Supported by Intel. It consists of a series of C functions and a small number of C ++ classes, implementing many common algorithms for image

I. About Linux1. What is Linux used?First, few users use Linux as a desktop system, because Windows desktop system is good enough. We mainly use Linux as the operating system of the network server. If you and your application meet the following