Linux

1. Process descriptors and task structuresThe Linux kernel stores the process in a two-way loop linked list called the task queue. Each item in the list is a structure of type task_struct, called the process descriptor. The process descriptor

Basic Environment description and installation 1, Server servera=192.168.1.124 (debian7.8) serverb=192.168.1.122 (debian6.0.10) 2, need to serverb the directory under Testtransfer ( 4.5G) under all remote replication to ServerA 3, need to use the

Special files in Linux[[email protected] ~]# CAT/ETC/PASSWD user database, the following is the interpretation of the meaning of each unit correspondingRoot:x: 0:0: Root:/root:/bin/bashUser name: X:uid:gid: Comment: User home directory: Shell used

Simple Universal Web Server iptables configuration*filter: INPUT DROP [0:0]: FORWARD DROP [0:0]: OUTPUT ACCEPT [0:0]Packet discards for #超出 chain rules-A input-m state--state established,related-j ACCEPT-A input-p icmp-j ACCEPT-A input-s 127.0.0.1-d

File types for LinuxOrdinary files: Divided into plain text and binaryCatalog files: Directories, the only place where files are storedLinked files: Files that point to the same directory or file, broken down into symbolic links (soft links) and

linux Text-based operationsBasics of text manipulation:cat--text Simple View command, can only see the last screen of informationcat-n//file--Display Line numbersmore--Page view text contentless--Page view, more useful than morehead--Partial View

1. Usage of export_symbol in Linux The functions defined within the Export_symbol tag are exposed to all kernel code and can be called directly into your kernel module without modifying the kernel code. You can also manually modify the kernel

1. The concept of system invocationTo interact with processes running on user space, the kernel provides a set of excuses. Through this interface, applications can access hardware devices and other operating system resources. This set of excuses

First, the preparation work, depends on the package installationYum Install apr*Yum Install sqlite*Download SVN package and installcd/usr/local/src/wget http://mirror.bit.edu.cn/apache/subversion/subversion-1.7.20.tar.gzTAR-ZXVF

The Linux directory is similar to a tree, and the top level is its root directory, such as:/bin binary executable command/ DevEquipment Special Files/ etcSystem administration and configuration files/ETC/RC.Dstartup configuration files and

Method: Using the loop output of the array, these graphics can also be implemented in our black box haha/********************************************************************** * * Copyright (c) 2015,wk Studios* * Filename: progress.c* *

Shortcut key is a good thing, Slag also learn Linux fast two weeks, summed up a bit of their usual shortcut keys, later learned to add. (whichever is Ubuntu14.04)1. Press and hold the Super key (that is, the window key) to display the frequently

Https://github.com/174high/iw-3.7-Linux-portingHttps://github.com/174high/libnl-1.1-stable-master-linux-portingDownload to the PlatformI. IW 3.7 tool relies on Libnl-1.1-stable-master libraryI. Compile the Libnl-1.1-stable-master library

Turn http://blog.csdn.net/dingxy/article/details/4016383The procedure to execute a file when logging on to Linux is as follows:When you first log in to Linux, start the/etc/profile file, and then start one of the ~/.bash_profile, ~/.bash_login, or ~/

The previous two days have written Ubuntu to modify the user name and hostname of the article, when the Linux command is not familiar with the method is to manually modify the three configuration files. Now this article is modified under the

Generate Driver Dependent filesThe depmod generates a dependent file modules.dep between the drivers and is saved in the/lib/modules/$ (uname-r) directory.View the drivers that have been loadedLsmod?View driver InformationModinfoYou can also analyze

1./bin: Command required to obtain minimal system operability2./boot: Kernel and files required to load the kernel3./dev: Device items for terminals, disks, modems, etc.4./etc: Key startup files and configuration files5./home: User's main directory6.

The installation steps are as follows:1. Yum Install Subversion2. Enter RPM-QL subversion to view the installation location, such as: we know that SVN generated several binaries in the bin directory.  Enter SVN--help to see how SVN is used, such as.

http://blog.csdn.net/dyllove98/article/details/8917197Linux has a lot to do with memory management, and this article starts with the management of the virtual address space of the process. (The code on which it is based is 2.6.32.60)Whether it is a

Notes for Linux compression and decompression commands and notes for linux compression and decompression Compression: tar-cf new.tar data.txt Decompress: tar-xf new.tar-C tmp/----> If tmp exists first, you can put the decompressed file under the