Linux

Why Linux, not Windows Powerful network features (all network functions are supported: WWW, Mail, FTP, DNS, or DHCP, NAT and Router) Stable computing power Support for graphical interface (GOME) Basic knowledge of Linux station

Name: DDUsage rights: Any user dd this directive is defined in manual as convert and copy a fileHow to use:DD [option]View Help NotesDD--helpOrInfo DDView version:DD--versionInput or outputDD If=[stdin] Of=[stdout]The size of the forced input or

Transferred from: http://blog.csdn.net/waverider2012/article/details/38305785The interval of the Hrtimer high-precision timer is determined by the Ktime_set (const long secs, const unsigned long nsecs) and can be NS-level. The example here is 5ms

/********************************************************************* * Author:samson * date:04/28/2014 * Test PL Atform: * 3.11.0-12-generic #19-ubuntu * GNU bash, version 4.2.45 * **************************** **************************************

User state: Ring3 the code running in the user state is subject to many checks by the processor, which can only access the virtual address of the page that is specified in the page table entry that maps its address space, and only the I/O license

#include #include#include#includesem_t sem1,sem2;voidFunc1 (Char*string){ inti =0; while(i -) {sem_wait (&sem1); printf ("%s\n",string); I++; Sem_post (&sem2);Because SEM2 was used in the fun2, there was no post.After the FUN1 output is finished,

Dermot W.J. Zhang Original works reproduced please specify the source "Linux kernel Analysis" MOOC course http://mooc.study.163.com/course/USTC-1000029000I. Analysis of key code SWITCH_TO for process switching 1. Timing analysis of process

Original works reproduced please specify the source + "Linux kernel analysis" MOOC course http://mooc.study.163.com/course/USTC-10000290001. Understand the switching mechanism of the process context and the relationship to the interrupt context

scheduling timing of processes and switching of processesThe principle of operating system describes a large number of process scheduling algorithms, these algorithms from the perspective of implementation is only to choose a new process from the

Date command summary, date Summary The date command is a common command for viewing date and time. The date MMDDhhmmYY. ss (change order) is used to change the time. Linux time is divided into system time and hardware time, [Root @ www doc] # clock -

Common Linux commands and common Linux commands Two of my friends asked me about linux over the past two days and asked me if I needed it or not at work. I have been working for less than one year. I told him that you are recommended to study and

Linux Shell script getting started You should know the title. This is a series of articles about Linux Shell scripts. Through this series of articles, we hope to help Linux beginners quickly start to write Shell scripts, so that they can test and

Bash on Windows Experience Test-introduction and InstallationPreface Microsoft announced at last week's Windows BUILD conference that WIN10 will introduce native Bash and will soon be available in the technical preview version. In this way, the

Crontab Problem Analysis Problem Analysis:1. crontab is not executed. 2. The current file is not an executable file 3. the syntax of the shell file called by crontab is incorrect. Solution:1. Check whether crontab is being executed. The scheduled

Ubuntu laptop's poor battery performance The battery endurance of Ubuntu Desktop in the notebook has never been very good. If a laptop runs Windows 10 battery for 8 hours, it may only last for four hours. Of course, based on the Use Cases of

Ubuntu apt image source of Netease 163 Ubuntu apt image source of Netease 163 Add it to the top of/etc/apt/sources. list. (Http://mirrors.163.com/.help/ubuntu.html # Ubuntu 15.10 wily, Ubuntu 15.04 vivid, Ubuntu 14.10 utopic, Ubuntu 14.04 trusty,

CentOS 7 system deployment RabbitMQ Linux: CentOS7 1. Install the system Infrastructure servers: Java platform, Linux Remote Management, and development tools 2. Open the network connection: (1) cd/etc/sysconfig/network-scripts/# enter the network

Nginx access to static html files Nginx access to static html files Nginx Configuration: User nginx;Worker_processes 8;Worker_cpu_affinity 00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000;Worker_rlimit_nofile 65536;# Error_log

Install the Nginx server on CentOS 7 Next I will record my Nginx installation experience on CentOS for future reference. 1. Download The nginx-release package Take CentOS 7 as an example, download nginx package:

Use Azure backup to back up and restore Azure virtual machines Azure in China recently released a version about using Azure Backup to back up VM services, which was officially launched on July 15, March 1. This feature is intended for users who need