Trace analysis of the boot process of the Linux kernelYu Jiacen Original works reproduced please specify the source "Linux kernel Analysis" MOOC course http://mooc.study.163.com/course/USTC-1000029000In the previous lesson, we learned about the
Basic principles of Linux:A small program consisting of a single purpose, combined with a small program to complete complex tasks;all documents;Try to avoid capturing the user interface;The configuration file is saved in plain text format;
Whining, today 10:30 back from the lab and the girlfriend quarreled very big, are about to break up the feeling, but learning can not be interrupted, because only no matter what all adhere to the good habits, I know that if I and my girlfriend in
Linux file properties: (-rwx r-x r--1 root root 2800 Feb 1 11:55 test.txt ORDER by space, except time)
The first set of characters indicates that the file is a directory, a file, or a linked file.
The second set of characters
from the last section, we know. Tomcat and he has extended it. Java Virtual Machines JDK , let's learn more about it today, and learn to build this Java service. 650) this.width=650; "src=" Http://img.baidu.com/hi/ldw/w_0024.gif "alt=" w_0024.gif "/>
Summary section:Linux Kernel source code:Arch supports different CPU source code; main concern x86Init kernel-initiated code; focus on MAIN.C, the entire Linux kernel boot code start_kernel functionKernel Core CodeInstalling the kernel Source: How
I. Introduction to Linux kernel source codeStable version kernel: Linux-3.18.6Directory structure of the Linux kernel source code:Arch Catalog: In the Linux kernel source code occupies a large proportion, because the Linux kernel supports a lot of
---restore content starts---Introduction of Linux Kernel source codeThe code in the Arch/x86 directory is our most important concern.fs/File Systeminit/Kernel boot-related codeThe Start_kernel function is equivalent to the C language's main
1, VIVI 1.txt will create and open a file directly 1.txt2. TouchThe role of touch is to change the time of a file or directory. Touch 2.txt If 2.txt does not exist, create an empty file 2.txt3. Echoecho "ABCD" > 3.txt can create file 3.txt directly
Makefile for Linux development tools (below) and makefile for development toolsIi. Makefile (lower) 01. make common embedded function calls $ (function arguments) $ (wildcard PATTERN) files in the current directory that match the PATTERN, such as:
Install Lua game engine in Ubuntu 16.04
Ubuntu 16.04 installs the Lua game engine Love, which is unknown in China. However, many people in foreign countries still use it. We generally call this engine love (abbreviation ).
Love is an engine, not a
The CentOS dual-nic is bound to a single IP address, and the NIC is hot standby.
With the development of technology, four Gigabit Ethernet NICs have become the standard for servers. In the production environment, to ensure the network stability of
Common centos commands
Create a directory: mkdir-p [directory name]
Open Directory: cd [directory name]
(1) cd ~ Enter the Home Directory of the current user
(2) cd-enter the last directory
(3) cd .. go to the upper-level directory
(4) cd. Enter
Linux shell BASICS (8) and Linux shell Basics8. Use the stream Editor of shell script sed & awk01.sed-Steam Editor # ed/etc/passwd1, 10 p ...... 1 s/root/byf/p (replace root with byf) # sed-e's/root/byf/G'/etc/passwd (same as above) only the
Install mysql online on Ubuntu and mysql online on ubuntu
Install mysql online on Ubuntu
1. Make sure that ubuntu can access the Internet normally
2. Change the software source (see the previous article for details)
3. Run the following
Use of userdel in user and group management on the command line interface
Userdel-delete a user account and related filesIn Linux, The userdel command is used to delete users and related files in the system.SyntaxUserdel [Option] usernameParameters-
Gcc for Linux development tools and gcc for development toolsLinux development tool 1. gcc entry (I) 1. gcc-related concepts gcc (gnu c Compiler) Compiler, initially supporting C language, now supports C, C ++, Java, Pascal, Ada, COBOL language, etc.
OpenSSL DROWN death Vulnerability Detection and repair methods
I. Vulnerability Description: popular servers and clients use TLS encryption. SSL and TLS protocols ensure that users surf the Internet, shop, and instant messaging without being read by
Does Linux O & M personnel need to master a programming language?
Recently, some colleagues or Linux beginners often asked me: do O & M personnel need to learn a language? What language should they learn?
I have two answers to this question:
First
Dubbo cannot access the remote Zookeeper registered serviceBackground
When Dubbo is used, it is found that when Zookeeper, Dubbo-admin, producer, and consumer areIn the Intranet, there is no problem with producer production and consumption. However,
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