Linux

ConceptGateways are in two systems that use different communication protocols, data format structures, languages or systems, computer systems or other devices that act as converters, gateways and bridges are not the same, bridges only pass data

http://blog.csdn.net/yusiguyuan/article/details/39520933Linux 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

When Linux is installed through VMware, the Linux system needs to be online or remotely operated via SSH, so network configuration is required, there are three modes:　　　　1. Bridging modeThis way to share the host's real network card, you need to set

Computer System One: first to understand the composition of the computer systemComputer systems consist of hardware (Hardware) systems and software (software) systems650) this.width=650; "src="

First, interruption1. ConceptLearned the microcontroller should be very clear the concept of interruption, that is, the CPU in the normal execution of the program process, there is an unexpected event (interrupt event), so the CPU suspended the

first, according to their own system number of network download the corresponding JDK installation packageFor example, the following: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.htmlSecond, the download to extract

After you install Tomcat, configure the Tomcat environment variable.vim/etc/profile.d/tomcat.shCatalina_base=tomcat Installation PathPath= $CATALINA _base/bin: $PATHExport PATH catalina_basesource/etc/profile.d/tomcat.shModify Tomcat's Server.xml

Single-File operation:Zip index.zip demo (Zip compress demo file, name Index.zip)Unzip Index.zip (unzip zip file)gzip Demo (gzip compression for demo files, get demo.gz, the original demo file will disappear )gzip-d demo.gz (demo.gz file for gzip

1 Zombie Process:　　 The child process has exited, but the process has not yet recycled the resources for the zombie processCode Validation　　1#include 2#include 3#include 4 5 intMain ()6 { 7 pid_t pid;8 if((Pid=fork ()) ==-1)9 {TenPerror ("

To create a file:Touch test{0..2}.txt------------Create multiple files in successionRedirect:> Output> Overwrite,>> append,2>> error REDIRECT outputCat>>test.txt input text ends with Ctrl+dEcho ' >>test.txt>test.txt emptying Test.txtListlist 2>error.

Background: Sometimes we use multiple uses when using virtual machines. The reinstallation takes a lot of time, and we can quickly clone the exact same system with the functionality that comes with the VMware virtual machine. Prerequisite: The

Start-up process: 1) BIOS: Boot active firmware. will be aware of the first boot device. 2) MBR: The primary boot partition block in the first sector of the first bootable device. This includes the boot loader program. 3) boot loader: a software

1. Find usage" Text.txt "/tmp/text.txt/root/text.txt#找到文件后, give it to the pipe to delete[Email protected] tmp]# Find/-type f-name "Text.txt" | Xargs rm-fInterview title: Delete all files in a directory, but keep a specified file (keep File10)[email

1, FigletInstalling FigletYum-y Install FigletCreate a font for Hello with FigletFiglet Hello650) this.width=650; "title=" 70519095824.png "alt=" Wkiol1keuw2qijmzaaao3xeotbq516.png "src=" https://s5.51cto.com/

Mount the Mirror[[email protected] ~]# cd/mnt[[email protected] mnt]# mkdir/mnt/cdrom[[email protected] mnt]# mount-t Iso9660/dev/cdro M/mnt/cdromCopy the files in the mirror to the local[Email protected] ~]# mkdir/opt/localbase[[email protected] ~]#

Linux OS Timer task system Cron get startedCron is a timed execution tool under Linux that can run a job without human intervention. Since Cron is a built-in service for Linux, it does not automatically get up, and you can start and shut down this

Have a day more, finally straightened out the deployment principle of UWSGI, the following summarizes some of the pits encountered, hoping to give the reader less detours.In short, UWSGI is a Web server, Nginx reverse proxy actually with these

Read the file header to match the file type according to the signature.Official: http://mark0.net/soft-trid-e.htmlWindows release Gadget: FileanalysisThe following is the Linux

1 Thread-to-process comparisonHere is a detailed description of the noteshttp://blog.csdn.net/laviolette/article/details/515069532 Creating a thread functionint Pthread_create (pthread_t *thread, const pthread_attr_t *attr,void * (*start_routine)

Linux ~ In fact, shell scripts are also very simple. After using two centos, I also want to check its script. We know that shell is like batch processing in windows. It can combine some statements and then execute them in a unified manner, it is