Linux

1. Interrupts#中断使得硬件得以发出通知给处理器 is essentially an electrical signal.#中断随时可以产生, the kernel will be interrupted at any moment.#不同设备的中断不同, each interrupt is identified by a unique digital ID called an IRQ (interrupt request)2. Interrupt handlers#响应中断的时候,

1.arch folders:-related to the code stored on different platforms, each platform is differentiated by different folders.Alpha PlatformARM PlatformARV32 PlatformX86 Platform2.drivers folder: The folder where the driver is stored. Different drivers

Configure Linux to surf the Internet with the following methods:First step: Modify file: Ifcfg-eth0, path in/etc/sysconfig/network-scripts/ifcfg-eth0;Modify File command: Vim/etc/sysconfig/network-scripts/ifcfg-eth0The previous content of the

Setting environment variables in Windows is a simple matter. For example, as long as you right-click My Computer, advanced system settings, environment variables, select Path, tap Edit to enter the content you want to add. You can add some

Regular expression: Regular expression,regexpMetacharacters.: Represents any single character[]: matches any single character within the specified range[^]: matches any single character outside the specified rangeCharSet: [:d igit:], [:

0. Personal tagsCaicongyangHttp://blog.csdn.net/caicongyang1. Script retomcat.sh#!/bin/shpid= ' PS aux |grep tomcat |grep-v grep |grep-v Retomcat | awk ' {print $} ' echo $pidif [-n ' $pid ']then{ echo =====kill tomcat ========== kill-

Reference article: http://www.thegeekstuff.comhow SED worksThis is called as one execution cycle. Cycle continues till end of File/input is reached:1. Read a entire line from Stdin/file.2. Removes any trailing newline.3. Places the line with its

Read-write locks are more adaptable than mutexes, and multiple threads can consume read-mode reads and writes at the same time, but only one thread consumes write-mode read-write locks.1. When a read-write lock is a write-lock state, all threads

Set dual-physical NICs to virtual NICs in Linux To provide high network availability, We need to bind multiple network cards to a virtual network card to provide external services. This can prevent a network card from being damaged or connection

Linux automatically restarts tomcat scripts and linuxtomcat scripts0. Personal tag Caicongyang Http://blog.csdn.net/caicongyang1. Script retomcat. sh #! /Bin/shpid = 'ps aux | grep tomcat | grep-v grep | grep-v retomcat | awk '{print $2} ''echo

Linux Command-awk, linux-awk Familiar with awk and print syntax Fuhui @ ubuntu :~ $ Ls-lh | awk '{print $5 }' BEGIN and END are enclosed in single quotes Fuhui @ ubuntu :~ $ Ls-lh | awk 'in in {count = 0; print "start:" count} ''end {print

Linux and linux I installed the linux operating system a few days ago and installed several common tools. Now let's talk about my feelings! For a person who can't even spell a few characters in linux, it's cool to get me involved in this job !" Of

ITOP-4412 Development Board low power high performance open source hardware platform -- Get Started evaluation, itop-4412 Low Power ITOP-4412 Development Board is now more popular Development Board, the author recently entered a set. It is also

Install jenkins in linux (redhat) Jenkins installation can be divided into online installation and local software installation. Here I use the second method. After downloading it, an application can be directly installed by clicking install, after

Linux LAN Construction System Version: Linux red hat 6.31. Open ifcfg-eth0 # Cd/etc./sysconfig/network-scripts # Vim ifcfg-eth0. 2. Modify ifcfg-eth0 Ps: the configuration files related to the ethernet card are located in

Linux Command learning plan [sed], linux Command sed Introduction: The Sed command is used for text line processing in linux. For ease of instruction, I created the dictionary words under/usr/dict and used it as a demo template. Print words with nl:

The latest common network tool in CentOS: fping host Scanning In Linux, there are many powerful network scanning tools, including host scanning, host service scanning, and route scanning. Fping is a host scanning tool. Compared with ping tools,

Under CentOS./configure & make installNormal compilation and installation/uninstallation: the installation of source code generally consists of three steps: configuration, make, and make install ). The configure file is an executable script file

Iptables in CentOS: Scenario practice This article demonstrates how to use iptables. Firewall setting policy Firewall Configuration policies are generally divided into two types: one is "pass", and the other is "Block: By default, all data packets

CentOS7.1 uses a 163 Image CentOS 7.1.1503 Install image http://mirrors.163.com/centos/7.1.1503/ OS /x86_64/ Help document http://mirrors.163.com/.help/centos.html // Backup [Root @ localhost yum. repos. d] # cd/etc/yum. repos. d/ [Root @