Linux

Common directivesLS 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)

ARM11 Processor Bare-metal exception and interrupt handling reference:"OK6410 Bare Metal Program" Exception handling"OK6410 Bare Metal Program" key interruptedIn most processors after arm V4 and v4t, the position of the interrupt vector table can be

NFS Build experiment under Linux1, System Environment:RHEL 7.3 (Maipo) 3.10.0-514.el7.x86_64NFS Server ip:192.168.74.130NFS Client ip:192.168.74.131#systemctl Status Firewalld#systemctl stop firewalld# To turn off the firewall#setenforce 0

1, the reason: IP people difficult to remember, so map into a domain name.2,bind Domain Name service, download package bind and Bind-chroot (the second package provides a virtual root mechanism)1.BIND Server-side programsMain executing

1. CatShow entire file at once: Cat filenameCreate a file from the keyboard: cat> filenameMerging files: Cat file1 file2 > FileName2. > redirectIn the Linux command-line mode, if the command requires input that is not from the keyboard, but from the

1 Specify what libraries are used-lstdc++This link will go to the specified directory to find the link library, priority to use the dynamic library. Then add dependencies to the elf file and place them in the needed.2 Specify where to find the

1. View user account information file:cat or less/etc/passwd(both in this location)After the carriage return, the picture below is the explanation of the content650) this.width=650; "src="

1. Logout, shutdown, restart-Logout: Logout: Logout, exit-Shutdown: Command: shutdown-h time-H: ShutdownTime1. Now: Right away2.12.30: Specify a specific time3.3: A few minutes later-Restart:Shutdown-r time-r:restartSudo:superuser do: The command is

By default, there are 6 command interaction channels and a graphical interface interaction channel, the default entry is the graphical interface Channel command interactive mode switch: CTRL+ALT+F1---f6 graphical interface Ctrl+alt+ F7

Mware Workstation serial number:5a02h-au243-tzj49-gtc7k-3c61nStep One :Right-click New virtual machineStep two: Customize (Advanced)-NextStep three: Hardware compatibility (default: Workstation 12.x) --NextStep Four: Install the operating system

Build directory: mkdirCommand English original: Make directoriesCommand format: mkdir [parameter] [directory name]-P Recursive creation"If you are creating directory A and Creating subdirectory B of directory A, it is mkdir 2 times if you do not use-

Below is the BASH program under Linux:#!/bin/basht=0//number of data groups while true, do let "t= $t + 1" Echox printf $t The bash language variable needs to be added $ printf ":"before the variables. /datamaker >

First make the following preparations:1. A USB flash drive of more than 8G, the use of the time will be formatted, suggested empty2. Section assistant software, website download link3. A Linux system, here with the classmate recommended Fedora 26,

Common Linux operationsPrevious This document describes common Linux operations in detail.  Basic Concepts Linux is case sensitive. All content is saved as files, including hardware Linux does not have the extension concept, and does not rely on the

Httpd Web page identity authentication and httpd Identity Authentication Directory:1.1 htpasswd command1.2 Identity Authentication commands1.3 Require command1.4 web Identity Authentication example Httpd provides rich support for web identity

Python object-oriented, python object-oriented 1. Object-Oriented Programming ):For beginners of programming languages, OOP is not an easy-to-understand programming method. The three features of OPP include inheritance, encapsulation, and

Linux centOS7 installation and XShell software configuration under virtual machines, centos7xshellPrevious This article describes how to install centos 7 on a virtual machine.  Preparations [System download] Before installing centOS7, download the

Linux entry notes: 20. Linux package management tool YUM and linuxyum1. YUM (Yellowdog Updater, Modified) 1. Introduction to yum Although it is convenient to manage software in the RPM software package form, you need to manually solve the dependency

Linux (8) upload and download local files to the linux server through XShell, (1) Using command line 1. linux Server Settings On a linux host, install the upload/download toolkit rz and sz. If you do not know the specific name of the installation

Some operators of files, file Operators When executing files, pay special attention to the judgment. -R The file can be read by a valid UID/GID. -W The file can be written by a valid UID/GID. -X The file can be