Linux

Installation of Linux systems (centos6.8)First step setting boot up press F2 to enter this interfaceThe five options for installing the system's main interface are indicated separately650) this.width=650; "title=" 1.png "alt="

The History of LinuxAndrew S.tanenbaum proposed Minix, while Linus Torvalds extended Linux from Minix. Application areas of LinuxWebsite Development background Application 3D scene automatic TV Android bottom system and so on. How to learn

File or directory permissions under Linux 1.1 Description of permissions1, Linux file or directory permissions are controlled by 9 permissions, every three bits for a group, that is, the file is the main (owner= owner = user) R, W, x, user group

1. The Linux file system consists of three parts: file name, Inode,block (real access data)can use: Stat command to view file inode information[[email protected] etc]# stat/etc/passwd File: "/etc/passwd" size:1653 blocks:8 IO block:40

LS Display file or directory-l list File details L (list)-a lists all files and directories under the current directory, including Hidden A (all)mkdir Creating a Directory-P Create directory, if no parent directory, create p (parent)CD Switch

First, what is the libraryIn essence, a library is a binary form of executable code that can be loaded into memory by the operating system. Because of the different nature of Windows and Linux, the binary of the libraries is incompatible. The

1, Scheduled TasksCrond: Management and, when we need to execute some script commands regularly, it is very convenient and labor-saving to schedule tasks.CRONTAB Specifies the file containing the crontab for the plan to be executedCrontab is divided

Recent work on file systems and Linux block devices requires a deeper understanding of the relationship and interaction between the file system and the underlying block device. I refer to the book has Aoqingyun "Storage technology principle analysis-

Ubuntu Add System User (below)[Email protected]:~# sudo useradd-s/bin/bash-mr solin[email protected]:~# passwd solin [email protected]:~# sudo adduse R Solin sudo# View created user [email protected]:~# cat/etc/passwd ...View Help[email protected]:~#

Installation of Linux systems (centos6.8)First step setting boot up press F2 to enter this interfaceThe five options for installing the system's main interface are indicated separately650) this.width=650; "title=" 1.png "alt="

Tomcat relies on the JDK package, so the JDK is configured first.After the configuration is complete, unzip the downloaded Tomcat to/usr/localTAR-XVF apache-tomcat-7.0.70.tar.gz-c/usr/localConfiguring Environment variablesEdit

Linux Execution Bin Program:Error while loading shared Libraries:libncurses.so.5:cannot open Shared object file:no such file or directoryWorkaround:Yum-y Install libncurses.so.5After installing this library, it is possible to report:Error while

1. How to use redirection[email protected] ~]# du-4. 0K test.txt test.txt [[email protected] ~]# du-0 test.txt 2. Use the true command to redirect the empty file[email protected] ~]# du-4. 0K true > test.txt [[email protected] ~]# du-0

Installation Environment:Installation Environment: CentOS-6.5 Installation Method: Source InstallationInstalling the JDKSoftware: jdk-8u101-linux-x64.tar.gz Files in/usr/yanghai extract to/usr/local/java extract files to/USR/LOCAL/JAVATAR-ZXVF

Generate key under 1.LinuxSsh-keygen's command manual, through the "Man Ssh-keygen" command:by command "ssh-keygen-t RSA"A ". SSH" folder will be generated at the user's root directory after the buildEntering ". SSH" will generate the following

I. Introduction of Linux partition mount pointsLinux partition mount point introduction, the recommended capacity for reference is not absolute, with the use of various systems and hard disk space quotas and other factors are actually adjusted:

Record some of the use of VI instructions, the blue part is more commonly used, wherein the use of the re-described, very few are unused, and some are not used or recorded in, follow-up to supplement the amendment:Reference:

Linux systems generally do not directly use the root user to operate, you need to add new users.First, view the existing users of the current systemcat/etc/passwdNext, add the desired userUseradd [-D home] [-s Shell] [-c comment] [-M [--template]] [-

Solution to the problem that CentOS under a virtual machine cannot access the Internet: centos 1. Make sure that the network adapter of the virtual machine is in NAT mode.   2. Set the DHCP settings of VMnet8 in the "edit" -- "Virtual Network

Use of Linux -- vi, linuxvi Record some instructions for using vi. The blue part is commonly used, and the used part is re-described. A few parts are not used, there are still some unused items that are not recorded and will be supplemented