Linux-0.11 Kernel Source Analysis series: Memory management Copy_page_tables () function analysis

/* *author : Davidlin *date : 2014-11-22pm *email : [email protected] or [email protected] *world : The city of SZ, in China *ver : 000.000.001 *history: editor time do * 1) Linpeng 2014-11-22

Linux SCP command details and application examples

There are 3 common ways to copy files between different Linux:The first is FTP, which is one of the Linux installation FTP Server, so you can use an FTP client program to copy files.The second method is to use Samba services, similar to the Windows

Zabbix Monitoring (12): Automatic monitoring of Linux ports

1. Client New script[[email protected] ~]# vi /usr/local/zabbix_agent/sbin/discovertcpport.sh #!/bin/ bashportarray= (' netstat -tnlp|egrep -i  ' $ "|awk {' print $4 '}|awk -F ': '   ' {if   ($NF ~/^[0-9]*$/)  print  $NF} ' |sort|uniq ') #namearray =

Application of Vs2012 in Linux development (4): Definition of public properties

In the process of embedded development, some parameters are basically not changed, such as compiling the host's IP, user name, password and other parameters. We use the property manager provided by VS to save these parameters.Open the property

Hasen Linux device Driver Development learning journey-device driver that supports polling operations

/** * Author:hasen * Reference: Linux device Driver Development Details * Introduction: Android Small rookie Linux * device Driver Development Learning Journey * Topic: device drivers that support polling operations * DATE:2014-11-07 */

Change bash prompt color by setting PS1 variable under Linux

We all know that in bash, you can change the color of the prompt by PS1 variables. When the command output is long, it is often not easy to see where the output begins at the first glance, change the PS1 variable by changing it, you can change the

"Linux Environment Programming" ARP programming

(Note: part of "Linux C programming One-stop learning")Ethernet (RFC 894) frame formatFigure One Ethernet packet typeThe source address and destination address refers to the network card's hardware address (also called MAC address), the length is 48

How to make a USB flash drive to install a Linux system

First, the basic preparatory work: 1.     u disk or mobile drive 1 the size of the storage space depends on the store linux size of the system; 2.     ready to burn software ultraiso or other burning

Linux Special Symbols Encyclopedia

The special symbols commonly used by http://www.cnblogs.com/balaamwe/archive/2012/03/15/2397998.html in the shell are listed below:#   ;      ;;      .       ,/\ ' String ' |   !      $   ${}   $?   $$ $* "String" * * *?   : ^ $# [email protected] '

The difference between exit and _exit in Linux

The difference between the Exit,_exit-The difference between exit () and _exit () function (Linux system) 2012-03-20 15:19:53Category: LINUX Note: exit () is exit, The passed-in parameter is the status code when the program exits, 0 -1 1 c

Deep understanding of the inode of the Linux file system

Reprinted from: http://www.ruanyifeng.com/blog/2011/12/inode.htmlThis article on the inode to explain the more thorough, good article sharing, one is the collection, two is let everybody also can study together (already understood to skip), for some

Linux Online Simulator

Gisen_6300 of the Tang poems, not poetry will be yinLinux Online Simulator Recently in the use of some of the Linux commands, but a long time ago the Linux virtual machine was deleted, and do not want to practice a few commands to toss over

Analysis and review of CPU usage for each thread in the process of Linux

We often set up a game server in the new service, sometimes to stress test, so how to see, generally we will use the top command to see the CPU and memory consumption of each process, to obtain our process ID, Then we might look at each thread ID in

Linux and Windows dynamic libraries

Reprint: http://www.cnblogs.com/chio/archive/2008/11/13/1333119.htmlState link library technology implementation and design procedures commonly used technology, in Windows and Linux systems have a dynamic library concept, the use of dynamic library

PF_RING 6.0.2 compile and install on Redhat 6.3 x86_64

PF_RING 6.0.2 compile and install on Redhat 6.3 x86_64Preface This document describes the compilation and installation of PF_RING in Linux. PF_RING version: 6.0.2 (Latest Version) Http://www.ntop.org/products/pf_ring/ Download URL:

Basic but practical: Summary of common LNMP commands and common lnmp commands

Basic but practical: Summary of common LNMP commands and common lnmp commands 1. modify directory permissions[Root @ localhost ~] # Chmod 777/home/user Note: only set the permission of the/home/user directory to rwxrwxrwx.[Root @ localhost ~] #

Linux history command history

Linux history command history1. The role of history in linux is to record the commands that have been executed. Usage: history [n] n is a number, list the latest n commands-c. Delete All history commands in the Current shell by using history [-raw]

Wget, an open-source application in CentOS, discovers severe security vulnerabilities

Wget, an open-source application in CentOS, discovers severe security vulnerabilitiesWget, an open-source application widely used in CentOS and Unix systems, has discovered a serious security vulnerability, allowing attackers to create arbitrary

Solve the problem of slow SSH connection in linux

Solve the problem of slow SSH connection in linuxCurrently, SSH remote connection is generally used to connect to a linux server. I recently installed a new server and found that telnet is fast, ping is normal, but SSH connection is slow. There are

Install Hadoop2.2 In pseudo distribution mode in CentOS 7

Install Hadoop2.2 In pseudo distribution mode in CentOS 7 Here we will not introduce the installation of CentOS. For details, refer to the following connection and directly go to Hadoop2.2 pseudo distribution mode for installation. Install CentOS7.0

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