Linux

Problem: After Apache is installed, modify/user/local/apache2/CONF/httpd. the DocumentRoot parameter in the conf file is still accessed in/var/www/html. Apache can be started even if the configuration file is deleted.   The cause is that the

Makefile of the kernel module in Linux 2.6 Favorites Makefile of the kernel module in Linux 2.6 # Makefile 2.6OBJ-M + = Hello. o Kdir: =/lib/modules/$ (shell uname-R)/build# Pwd = $ (shell PWD) ALL:Make-C $ (kdir) M = $ (PWD)

1: syntax differences between Intel and at&t assembly. Intel assembly's target operand is on the left of the original operand, while the latter is on the right of the original operand. 2: $ is added before the immediate Number of at&t assembly,

The members in struct mntent correspond directly to entries in the/etc/fstab file. Its content is as follows: Struct mntent {Char * mnt_fsname;/* Name of the mounted file system */Char * mnt_dir;/* mount point */Char * mnt_type;/*

Original Definition: Include/Linux/init. h# DEFINE _ init _ attribute _ (_ Section _ (". init. Text ")))# DEFINE _ initdata _ attribute _ (_ Section _ (". init. Data "))) # DEFINE _ exitdata _ attribute _ (_ Section _ (". Exit. Data "))) # DEFINE _

Valgrind. Able to detect 1) Use uninitialized memory2) read/write memory released3) read/write memory out of bounds4) Inappropriate read/write memory stack space5) Memory leakage6) malloc/New/new [] and free/delete/Delete [] do not match.Simplest

Linux Cal commands Usage: Cal [-mjy] [month [year]Note:Display calendar. If there is only one parameter, the year (1-9999) is displayed. The year must be written in full: ''cal 89 ''will not display the year 1989 region. Two parameters are used to

Question: File A contains two columns per row. The format is url ip, and file B contains one column per row. The format is URL. awk is used to find out whether the URL in file B is in file a. If yes, output the URL and corresponding IP address (the

Usage: ls [Option]... [file]...List the information (the current directory by default ).If-cftuvsux or -- sort is not specified, it is sorted by letter size. Parameters required for long options are also required when short options are used.-A, --

The open function is used to open and create files. The following is a brief description of the open function. # IncludeFcntl. h> Int open (const char * pathname, int Oflag,.../* mode_t mode */); Returned value: if the operation is successful, the

First, why should we establish a kernel tree? Because we know that the driver can be compiled into the kernel for execution, or loaded into the kernel as a module for execution. The kernel of the driver version 2.6 is different from that of the

Due to the unreasonable design during system installation, the rapid growth of log files due to network communication faults, and other reasons, such as the full disk space, may lead to the inability to read and write disks, the application cannot

Linux memory count Another calculation ...... Using Oracle in recent days, we have found that Oracle uses a memory of up to 10 MB. Khan, quickly asked the manager to buy a new 1g memory to install, and then found that they could not recognize it.

Socket send error (15:50:53) Reprinted Tags:SocketSendIt   Research on sigpipe and related errno in socket Data TransmissionI haven't done c development for a long time, and recently I have been focusing on old business.I heard

Header file: # Include # Include # Include # Include # Include # Include # Include # Include # Include # Include # Include   Server code: Int main (INT argc, char ** argv){Struct sockaddr_un address;Int sock, Conn;Int addrlength;Char Buf [1024] = {0

Build Linux kernel tree for ARM platform Date: | category: Linux | tags: Miscellaneous Copyright statement: reprinted in the form of hyperlink to indicate the original source and author information and this statement http://jezze.blogbus.com/logs/156

Kernel tree ~ O 'Reilly's Linux device drivers have repeatedly stressed that kernel trees must be built when writing drivers. The so-called kernel tree is a logical form of kernel source code. First, check the kernel version used by your OS. Shana @

Preface:I have been working on nginx Load Balancing for the last few days. After nearly a week, I checked a lot of information on the Internet and finally ran a series of processes and functions today. During the course of study, I found that most

1. preparations:01, download 1: apache-tomcat-6.0.35.tar.gz. 2, jdk-6u18-ea-bin-b01-linux-i586-20_aug_2009.bin.02. Prepare the war package for the ishowchina project.03. The installation directory of this example is/usr/local/ 2. Install JDK:01.

I. http_loadThe program is very small, and less than 100 kb after decompressionHttp_load runs in Parallel Multiplexing to test the Web server throughput and load. However, unlike most stress testing tools, it can run in a single process without