Linux

Ifconfig Configure the Network interface tool introduction; Ifconfig is a tool used to view, configure, enable, or disable network interfaces, which is extremely common. For example, we can use this tool to temporarily configure the network card IP

With the gradual rise of Linux, there are already a large number of programs in the above gallop, many development environments (Development environment) also emerged. A good development environment must be a combination of editing, compiling and

GStreamer is the programming framework (framework) used to build streaming media applications in the GNOME desktop environment, the goal of which is to simplify the development of audio/video applications that can now be used for processing such as

As a slave Linux machine for the CentOS system. 1 Linux slave Machine setup Create Jenkins user sudo/usr/sbin/useradd-m jenkins-d/home/jenkins; View information ID Jenkins for Jenkins Users and groups: uid=506 (Jenkins) gid=506 (Jenkins) groups=506

mu network: Linux talent Formation program Linux common Commands Linux Common Commands 1. Command basic format linyk3@thinkpad:~$ linyk3: Login user name ThinkPad: Host name ~: Current Location $: normal User, #: root user command [options]

To reduce the amount of space occupied by log files, in many cases we package the log files in days or weeks as tar.gz packages. While this is a good space to take advantage of, it is inconvenient when we want to look at the contents of a compressed

windows and Linux dual systems modify boot entry order Install the Ubuntu dual system under windows and choose Ubuntu by default at startup, at least three ways to modify the boot sequence. 1. Modify/boot/grub/grub.cfg sudo vim/boot/grub/grub.cfg

corresponding to the Linux platform to grab the package methodGrab the whole bag: #tcpdump-X-S 0 host 192.168.1.12 Grab 68 Bytes: #tcpdump-X Host 192.168.1.12 The corresponding port grab bag: #tcpdump-x UDP port 1812 　　 corresponding to the

Tag:linux Tips JPEG Copyright notice: When reprinted, please indicate the original source and author information of the article by hyperlink form and this statementHttp://rtfsc.blogbus.com/logs/23148378.htmlBelieve that used friends should like to

Let's take a look at how traffic control is implemented in the kernel first, when the kernel sends the data, it eventually calls to Dev_queue_xmit, struct Qdisc *q if (q->enqueue) {rc = __DEV_XMIT_SKB (SKB, Q, Dev, txq);Goto out;} If the Q->enqueue

There is a recent use of the socket to send and receive data to the client at the same time, because it is an embedded Linux device and requires only one client to connect to the port at a time. Given the savings in system resources, only two

kernel timer (2.6.23) First, the definition:/include/linux/timer.h

Turn from: http://blog.csdn.net/adcxf/article/details/6386901 Everyone has a different approach to determining whether a file exists. I usually take two approaches: open and access;There are similarities and differences between the two methods, and

an overview Linux kernel Gpio is the simplest, most commonly used resource (and interrupt, Dma,timer) driver, applications can use the corresponding interface Gpio,gpio use the integer ID between 0~max_int, can not use negative numbers, Gpio is

This paper mainly introduces the kernel configuration system of Linxu2.6. If you browse the source directory, you can see that there are a lot of kconfig files and makefile files in the source directory and its subdirectories. What's the effect of

Reference:Http://elinux.org/Device_Tree_Usagehttp://blog.csdn.net/sgmenghuo/article/details/45071615 Basic Data Format The device tree is a simple tree structure that contains nodes and attributes. Properties are described by the form of key-value

One of the main features of the Linux system is that his network is very powerful. With the increasing popularity of the network, web-based applications will be more and more. In this network era, mastered the Linux network programming technology,

1 ls view file or directory"Feature description": View files or directories"Syntax format": ls parameter specifies a file or directory"Option Parameters":Parameter parameter description-L View details of a file or directory Ls-l/root-h Displays the

This article excerpt from: https://www.cnblogs.com/qingergege/p/5914218.htmlFunction One:int getopt (int argc, char* argv[], const char* optstring);Parameters 1, 2 are the input parameters of the main function, parameter 3 is the option string, and

The TCP model is as follows:The model above is already clear.The specific function usage will not elaborate.Take a look at the TCP simple example:where server.c#include #include #include #include #include #include #include #define ERR_LOG (ErrLog)