Linux

1. Basic shortcut key UsageCTRL + C: Stop processCTRL + L: Clear screenCTRL + R: Search History commandsCTRL + Q: Exit2. Common directory or folder commandsDescription: When installing Linux, create a itcast user and then log into the system using

The role of PATA environment variablesThe PATA variable value is used to record the Linux command path, such as when we enter a command each time, Linux will go to PataTo find the path to this command, we can enter the LS command every time, no

A Linux Red Hat series is used primarily for server and development environments.II. installation Process Put the CD into the optical drive, boot the system from the optical drive, and enter the system installation interface. Choose to

__SET_UP is a macro#define__setup (str, fn) \__setup_param (str, FN, FN,0)#define__setup_param (str, unique_id, FN, early)Static Char__setup_str_# #unique_id [] __initdata =str; Static structobs_kernel_param __setup_# #unique_id __attribute_used__ __

Stream editor to do line processingThe default is not to directly edit the original file, in memory processing (but the entire processing), temporary storage space is called the pattern space (mode). If the keyword can be matched and then edited

ArchiveA lot of documents, very messy,Easy to use, consult, readManaged (delete files in bulk)Compressiona.txt/etc/passwd text files save space after compressionAaa.jpeg may occupy more space after compressionCause: The picture and the video itself

Ifconfig ToolsIfconfig common usage Ifconfig: View the host activation status of the network interface situation; in the output: Lo is the return bad address of the host, Eth0 represents the first Nic, where HWaddr represents the physical

Brief IntroductionLinux is a free-to- use and free -to-spread UNIX-like operating system, born in 1991 October 5 (first officially announced), by Finnish students Linus Torvalds and later joined by a number of enthusiasts jointly developed.Linux is

1 #monitors the trailing contents of the filename file (the default 10 lines, which is equivalent to increasing the parameter-n 10), and refreshes the display on the screen. Exit, press CTRL + C. 2 " "3 equivalent to a dead loop4 " "5 Import

CentOS 7.0 defaults to using firewall as the firewall, where the iptables firewall is changed.1. Close firewall:Systemctl Stop Firewalld.serviceSystemctl Disable Firewalld.serviceSystemctl Mask Firewalld.service2. Install iptables FirewallYum

1: Java-jar test.jar or Java-jar test.jar parameter 1 parameter 2 parameter 3 // This mode is characterized by the ssh window is closed, The program stops running. Or the runtime can't cut out to perform other tasks. 2: Nohup java-jar Test.jar &

On Linux, run the vim command to edit how to modify the text content. 1. What is vim? Vim is a text editor developed from vi. Code Completion, compilation, error jump, and other convenient programming functions are particularly rich and widely used

Basic description of hugepage in Linux, linuxhugepage Learn about the huge memory page hugepage in Linux. Understand what a "large memory page" is, how to configure it, how to view the current status, and how to disable it. In this article, we will

Basic linux knowledge about the concept, basic linux knowledge1. Basic Knowledge judgment To check the properties of a file or file d, you can use the test command. [root @loacalhost ~]#test -e /vitest Use the test command to check whether the

Common linux operating commands (Centos) and linuxcentos Firewall operations View Firewall Status Firewall-cmd -- state Disable enabling Firewall Systemctl stop firewalld. servicesystemctl start firewalld. service View status Firewall-cmd --

Linux Apache configuration file summary, apache configuration file ServerRoot "/usr/local/httpd" # root directory of the http server. It is not a webpage directory. User daemon # User to run httpd Group daemon # Which Group is used to run httpd?

Installation and configuration tutorial for the Linux operating system and Virtual Machine VM VirtualBox, Before use, make sure to download and install the following software: I operate Linux using a vmvm in Windows. Virtual Machine: VirtualBox

Linux Account Management In linux, how does a user log on to the host to obtain the shell environment? First, use tty1 ~ The tty7 terminal provides the login interface, and enters the account and password to log on. After Entering the account and

Linux interview questions: how to view linux system memory Interview notes Method 1: free Intuitively shows linux system memory usage and swap Zone capacity Method 2: top Dynamically view the resource usage of each process in the system in

LVS scheduling algorithm and lvs SchedulingConnection Scheduling Algorithm in the kernel In the kernel, IPVS performs Load Balancing scheduling at the connection granularity. In the HTTP protocol (non-persistent), a TCP connection is required for