Linux

Installation EnvironmentLinux (Ubuntu Edition)JDK InstallationTar.gz is the version that can be used after decompression, here I will use jdk-8u65-linux-x64.tar.gz version, install to/usr/java/Step OneMove the file to the jdk-8u65-linux-x64.tar.gz

A file, forced to delete, change the file permissions will not changechmod 777 " . User.ini " for/home/wwwroot/www.fangbei.org/. User.ini:permission deniedrm" /home/wwwroot/www.fangbei.org/.user.ini " RM

Linuxcommon file system Operations management directives are as follows1.CommandMkfs:Create a new file system for a partition, which is the advanced format partitioncommand format: MKFS [-v] [-t fstype] [fs-options] filesys [blocks]Common Options

1. Setting up the network environment1) Setting up the host network environment#ifconfig eth1 192.168.16.1112) Set up the Development Board network environment>pri>setenv ipaddr 192.168.16.233>setenv ServerIP 192.168.16.111>setenv Gatewayip 192.168.1

/dev/Equipment Catalog/etc/system Configuration and service configuration file, start command directory/proc virtual file system showing kernel and process information/tmp Temp file directory, public toilet.Home directory for normal users./root's

The Linux file directory is a tree-like directoryBin---executable fileboot--> operating system boot file, system kernel, boot informationDev-->device, device information, computer hardware equipment informationETC--System configuration DirectoryHome-

I. Several configuration files related to environment variables (for bash):1./etc/profileSystem environment variable profile: For all users of the entire system, this file is executed when the user logs on for the first time after the system starts,

recently self-learning Linux, actually want to train structure but reluctantly, had to self-study, will learn some knowledge to share, welcome everyone spit bad. The basic usage of SED is shared belowOne, sed command-line format: sed [-ndfri] '

DeleteCTRL + D deletes the character at the cursor location equivalent to VIM x or DLCTRL + H deletes the character in front of the cursor, which corresponds to the HX or DH in vim.Ctrl + K Delete all characters after cursor equals vim d shift+$CTRL

Vim is a text editor developed by VI Three modes: Three modes of command, input, last line Command-Input mode: A current cursor after input A Line End Input I cursor position input I input at the beginning o Cursor Next line input O one line input

command [options] [number of references]------------------------Positioning------------------------CD webapps/--Navigate to WebAppsCd.. --Back to parent folderCD---Go back to the folder where you lastCD--Back to home folder--Displays the full path

In computer science, the shell is commonly known as a shell (used to differentiate itself from the kernel) and refers to the "user Interface" software (command parser). It is similar to DOS command and later cmd.exe. It receives the user command and

01-.tar Formatunpacking: [*******]$ tar xvf filename.tarpackage: [*******]$ tar cvf filename.tar DirName (Note: Tar is packaged, not compressed!) )02-.gz Formatdecompression 1:[*******]$ gunzip filename.gzdecompression 2:[*******]$ gzip-d

Ls-L Long formatFile type: the-Ordinary filesD; catalog fileB: Block device files (blocks)c; Character device files (character)l; Symbolic link files (symbolic link file)p; command pipe file (pipe)s; socket file (socket)File permissions: 9 bits per 3

Preparatory work:Download Install: VMware8.0 (this version is relatively stable, small size)Download: Rhel-server-5.8-i386-dvd.isoReady? Go!1. Create an empty virtual machine, which is equivalent to one more computerIn addition to the above steps

1. Basic concepts of Linux Packages2, RPM package management detailed3. How Yum and Yum are used4. Yum uses advanced and source code to compile and installFirst, the basic concept of Linux Package1. The installation packages on the Linux OS follow

Note:Kernel version: 2.6.30.9BusyBox version: 1.15.2Working users for PC Linux and Development Board Linux: root1. Configure the kernel:[*] Networking Support--->Networking Options---> Packet Socket Unix domain sockets[*] TCP/IP Networking[*]

1, VI of the basic conceptBasically, vi can be divided into three states, namely command mode, insert mode (and bottom line mode), and the function of each mode is as follows:1) command-line modeControls the movement of the screen cursor, the

one of the problems encountered: XXX is not in the sudoers file. This incident would be reported. Solution1. Switch to the root user, how to switch it needless to say, will not be Baidu to go.2. Add the Write permission to the sudo file, and the

0. Preface:0. Introduction Operating SystemIt is a very important basic discipline in computer science and a basic knowledge that must be possessed by a computer graduate. However, when studying this course class, if you just look at the textbooks