Linux

The installation environment for this article is UBUNTU14 64-bit, JDK version is jdk1.6.0_38, installation file name is Jdk-6u38-linux-x64.bin (different installation files are downloaded according to the system):

First, the system directory structureTo build a directory tree structure:Tree-a Show AllTree-d Show only DirectoriesTree-l n N Represents the number: Indicates how many layers to display ...TREE-F Displays the full path:Yum install-y

Category Monitoring instructions Describe Note MemoryBottleneck Free View Memory usage CpuBottleneck Top-hp See the process with the highest CPU usage

1. What is an operating system?The operating system is the intermediary between human and computer hardware2. Operating system composition3.linux Development processRichard StallmanStallmanFounding Company: FSF, free Software FoundationMake a system

Deployment project start Tomcat always error cannot find JDK, need source/etc/profile to take effect,The online approach is to modify the Tomcat configuration file to specify the JDK location, each time to join the new Tomcat is more troublesome,

Although it is very simple, but still want to record: Prepare a cloud host and connect to the cloud host Because it is a springboot project, a front-end separation deployment is used. So there's no use for Tomcat. Create a folder for

Transferred from: http://blog.sina.com.cn/s/blog_6f2d29af01015ac6.htmlZip:Compression:Zip [-acddffghjjkllmoqrstuvvwxyz$][-b ][-ll][-n ][-t ][-][compressed file] [ File ...] [-i Extract:Unzip [options] Compress file name. zipOptions:-X file list to

First, modify the user nameFirst login with root, and then modify the following file in the corresponding user name information:/etc/passwdSuch as:#注意修改路径/etc/shadow/etc/group/etc/gshadowFinal execution mv/home/oldname /home/newname(Note to modify

32.1 SAR: Collecting, reporting, or saving system activity information 32.2 Iostat: Report CPU statistics and devices, partition inputs, output messages 32.3 iotop: For I/O monitoring 32.4 Mpstat: Reporting CPU-related statistics 32.5

45.1 Ssh-agent: Storing the private key for public key authentication45.2 Ssh-add: Add an authentication agent for RSA or DSA identities45.3 Ssh-keyscan: Collect host public key45.4 sshd: Running the sshd daemon45.5 vncserver: Managing the VNC

13.1 Useradd: Create user account 13.2 AddUser: Create user account 13.3 lnewusers: Create user account 13.4 Usermod: Modify user account 13.5 Userdel: Delete user account 13.6 Groupadd: Creating a Cluster 13.7 Groupmod: Modifying a

12.1 C and C + + compilers for GCC:GNU projects 12.2 gdberver: remote Server for GNU debugging 12.3 CMake: Cross-platform makefile generation tools 12.4 indent: Change the appearance of C programs by inserting or removing spaces 12.5

Path VariablePath variable: The directory where the executable file (command) is recorded.echo $PATH: View the PATH variable.If you change the path of the LS command to/tmp/ls (using the MV command to move the/usr/bin/ls to/tmp/), you can only use

Base of CentOS Shell, centosshell The default Linux shell version is bash. All the commands We typed have records; they are saved in the. bash_history file. The command is saved to. bash_history only when the shell is highlighted normally. !!: Two

Note_centos6.8 compile and install Nginx, _ centos6.8nginx Centos 1, 6.8 Install necessary Nginx dependency packages: 1.Install the C language environment 2. Install the pcre Library to enable Nginx to support the rewrite module with the URI rewrite

Use centos7 to play the webpage Flash video and centos7flash Centos7 64-bit system. After the Flash Player rpm package is installed on the official website, the system prompts "You have not installed Flash Player or the Flash Player version is too

Static IP configuration in Virtual Machine linux   First set the network interface configuration file ifcfg-eth01. cd/etc/sysconfig/network-scripts/2. vi ifcfg-eth0# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]DEVICE = eth0 # DEVICE

Ubuntu entry-level usage record, ubuntu entry-level # This article # Getting started with ubuntu from scratch. With the redhat linux foundation, it is easier to get started, but there are some differences between the two. Update Start to

Install httpd server in source code Linux's httpd server, as we are familiar with, is a website server, and apache is used because of the following features: 1. Open source code 2. cross-platform applications 3. Support for various web

How to run your own public time server on Linux Timekeeping is one of the most important public services, but many people do not realize this. Most servers in public time are managed by volunteers to meet increasing demands. Here we will learn how