Reading the Technical Manual of UNIX/Linux system Management (XII)

2016.11.17Variables and quotingVariable names are unmarked in assignments but prefixed with a dollar

2022-06-03 Servers 我要分享

What is the historical extension function of bash

Today, I will talk to you about what the historical expansion function of bash is, which may not be well understood by many people. In order to make you understand better, the editor has summarized the following content for you. I hope you can gain something according to this article. Historical extension of Bash (History Expa

2022-05-31 Servers 我要分享

The use of alias Command in Linux

The Linux alias command is used to set the alias of the instruction. Users can use alias to customize the alias of the instruction. If you enter only alias, you can list all current alias settings. The validity of alias is only limited to the login operation. If you want to set an alias automatically every time you log in

2022-06-03 Servers 我要分享

How to understand touch and mkdir commands

In this issue, the editor will bring you about how to understand touch and mkdir commands. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article. 01 Command introduction everything has a life cycle, in Linux

2022-06-01 Network Security 我要分享

What is batch processing?

This article mainly explains "what is batch processing". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what is batch processing". OK,never claver and get to

2022-06-03 Development 我要分享

Give a brief description of the read_only read-only attribute in Mysql

For MySQL single instance databases and master libraries, if you need to set it to read-only, you need to do the following: the command to set MySQL to read-only: mysql > show global variables like "% r

2022-06-01 Database 我要分享

Sed4.4 manual

Sed, flow Editor Directory 1 introduction 2 run sed2.1 Overview 2.2 Command Line options 2.3 exit status 3sed script 3.1 sed script Overview 3.2 sed commands Summary 3.3 s commands 3.4 commonly used commands 3.5 less used commands 3.6 sed Master

2022-06-02 Servers 我要分享

Reading the Technical Manual of UNIX/Linux system Management (11)

2016.11.72 Scripting and the ShellGood system administrators write scripts. Scripts standardize and

2022-06-03 Servers 我要分享

How to hide bash History commands in Linux

Editor to share with you how to hide bash history commands in Linux, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it! Some methods of sorting out, only for large

2022-06-01 Servers 我要分享

Some things you need to understand to learn the Linux system

My university major is computer technology and application, that is, the so-called everything, nothing can be learned. When I was in school, I didn't have a sense of crisis. I was confused for three years. I didn't know the feeling of regret until I was looking for a job after graduation. unfortunately, there is no medicine for regret in the world, so I can only swallow the bitter water into my stomach. Until there is

2022-06-02 Servers 我要分享

Skills of using PSQL tools

Psql is powerful, skills can only be added later, look at a tool first see how to use help, here are some common things, such as how to view the directory, how to use variables, very useful $psql # connect to the database server, you can enter the corresponding SQ

2022-06-01 Database 我要分享

Analysis of the use of chattr commands in Linux

This article mainly explains "the case analysis of the use of chattr commands in Linux". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. Now please follow the editor's train of thought to study and learn "the case analysis of the use of chattr commands in Linux".

2022-06-01 Development 我要分享

Learn Linux Cloud Computing, the Ten dangerous instructions of Linux

Ten commands will be introduced to you in this article, but you'd better not "try" to use them. Of course, the following commands usually make foolishness hopelessly under the authority of root; under the identity of an ordinary user, it only destroys one-third of one's own acre. 1. Rm-rf command

2022-06-02 Servers 我要分享

How to solve the loss of Redis data

This article will explain in detail how to solve the problem of Redis data loss. The content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article. What is an AOF log? AOF (Append Onl

2022-05-31 Database 我要分享

How to use the efficient editor VIM

This article will explain in detail how to use the efficient editor VIM, the content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have some understanding of the relevant knowledge after reading this article. Although VIM has been used for a long time, it has always been half tone.

2022-06-01 Internet Technology 我要分享

What are the less commonly used gcc command line options in linux

Editor to share with you what are the gcc command line options that are not commonly used in linux, I believe most people do not know much about it, so share this article for your reference, I hope you will learn a lot after reading this article, let's learn about it! Generate-Wall

2022-06-01 Servers 我要分享

What is the interesting Linux terminal command?

What is the interesting Linux terminal command? for this question, this article introduces the corresponding analysis and answer in detail, hoping to help more partners who want to solve this problem to find a more simple and easy way. Do you think there are only boring jobs in the Linux terminal? Then you must not

2022-06-01 Servers 我要分享

Six Route filtering methods of OSPF

OSPF filtering 1, filter-policy import (configured in the ospf process) this command can only suppress the generation of routing entries, so no matter what routes are generated, they can be filtered. But you can't stop LSA from flooding. [R3-ospf-1] und

2022-06-01 Network Security 我要分享

How to use snapshots and AOF to persist Redis data to a hard disk

This article mainly introduces "how to use snapshot and AOF to persist Redis data to hard disk". In daily operation, it is believed that many people have doubts about how to use snapshot and AOF to persist Redis data to hard disk. The editor consulted all kinds of materials and sorted out the simple and useful ones.

2022-05-31 Database 我要分享

Detailed explanation of the usage of chmod Command in linux

Chmod command syntax this is the correct syntax when using the chmod command: chmod [options] mode [, mode] file1 [file2...] Here are some common options used by chmod: ●-f,-si

2022-06-02 Servers 我要分享