Linux

1, under the Windows system, many software installations need to configure environment variables, such as installing the JDK, if you do not configure environment variables, run the JAVAC command in a directory other than the software installation,

See Path:echo $PATHTo add a MongoDB server as a columnModify method One:Export Path=/usr/local/mongodb/bin: $PATHOnce configured, you can view the configuration results through the echo $PATH.Effective method: Immediate effectValidity period:

Generally you go to buy VPS will see the introduction said hard disk how many g such as 80GBut when you get into the system, you find out how it's only 10G, Df-h.In fact, this 10G is used to install the system and some of the most popular service

Knowledge of the main shell basicsStanding at the user's angle: Shell typeLogon Shell: Normal is usually a certain terminal sign-inSu-usernameSu-l USERNAMENon-sign-on shellSu UsernmaeOpen Command Window under graphics terminalShell scripts that are

Introduction to Chapter I.Linux applications behave as two special types of files: Executable + script files/bin binary Files directory, the standard program used to store the boot system/usr/bin user binaries directory, storing standard programs

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User group management is divided into two categoriesIf you assign to a group what permissions, then the members will have what permissions1. Private GroupsWhen you create a new user, you specify the group for the user. If not specified, a user group

1. Apache Access log processing, using Cronolog.2. Nginx Log Processing:Use the restart Nginx to achieve log cutting.Ideas:MV Nginx.log Nginx-${data}-nginx.log./nginx/sbin/nginx-s Reload3. Nginx does not log unnecessary logs, films, videos and so on.

Summary of Common Linux commandsCtrl + shit + "+" to enlarge terminal font, opposite + "-", shrink fontPoweroff or init 0 shutdownReboot restartInit 3 and StartX non-graphical and graphical interface switchingLS (list) View listCD (change directory)

This article simply describes what you just started learning about Linux, so that I could review what I learned beforeLinux Start-up process650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/75/4B/wKioL1Y1h0nRtyIcAAfDLBDFh4M020.jpg "title="

1) NIC driver mismatch may cause the Linux server network to be intermittent2) go to the official website to download the driver , detected the native network card type is Realtek Semiconductor Co., Ltd. rtl8111/8168b PCI Express Gigabit Ethernet,

InstallationIf the system does not have the command, install:apt-get install Sysstatyum install SysstatInstallation Complete:vi/etc/default/sysstatenabled="true"Start this tool to collect system performance data:/etc/init.d/sysstat startSAR

The free command is a shell command that is commonly used to view memory in Linux systems and performs the following effects:[Email protected]_24fd52f24e00:/# freeTotal used free shared buffersmem:61056 34296 26760 0 3776-/+ buffers:30520 30536swap:0

User version Information view1. View current system User login information: whoCommand name: Who command path:/usr/bin/who Execute permissions: All user syntax: Who function Description: View current system User login information supplement: W

Nginx Http://nginx.org/en/download.htmlInstalling Nginx requires the installation of a dependency package:Yum-y Install gcc-c++ pcre-devel zlib zlib-devel openssl-devel2.yum Source related packages and

Installation of Linux Virtual Machine Installation Linux 　　Installing Linux with a virtual machine there are a lot of problems on the network here is no longer one by one narration, in fact, install Linux is basically similar to the

Common Files extracted under Linux (including RPM, Deb package)How do I get the suffix named gzip file under Linux?1. A file with an extension of. A:#tar XV File.a2. Files with a. z Extension:#uncompress file. Z3. Files with the extension of.

Before with Ubuntu. Think of CentOS is also so configuration, the results copied down, start error haha ... Search online to find CentOS configuration requires a lot of files. Forget about the next referenceUbuntu, so configureThe CentOS

RPM commandRPM is a powerful Redhat package management tool that allows you to create, install, query, validate, upgrade, and uninstall each package, which stores files, including the files and names, versions, descriptions, and other information

Original post by wee0618 on 2007-3-2 19:10 posted on 4 floor Installation of a new user and password, but did not prompt for the root user's password, SU when using the installation of the user's password to report the wrong password,