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1) Experimental platform: punctual atom STM32MP157 development board 2) Purchase link: https://item.taobao.com/item.htm?&id=629270721801 3) Full set of experimental source code + manual + video download address: http://www.openedv.com/thread-318813-1-1.html 4) Official station B of punctual atom: https://space.bilibili.com/394620890 5) Punc ...

1. grep tool grep is a * * line * * filtering tool; Used to filter rows based on keywords Syntax and options Syntax: # grep [options] 'keyword' file name Common options: OPTIONS: -i: Case insensitive -v: Finds a row that does not contain the specified content,Reverse selection -w: Search by word -o: Print matching ke ...

Yesterday, the springboot+vue project was deployed on Linux. It is necessary to make a summary. mysql installation View the download address of each version of MySQL: https://downloads.mysql.com/archives/community/ MySQL 5.6.45 download address is https://cdn.mysql.com/archives/mysql-5.6/mysql-5.6.45-linux-glibc2.12-x86_64.tar.gz Check wh ...

RabbitMQ message middleware 1. Message Oriented Middleware 1. Introduction **Message middleware, also known as message queue, refers to the platform independent data exchange with efficient and reliable message transmission mechanism, and the integration of distributed systems based on data communication** In the distributed environment, mes ...

1. What is kprobe lfKprobe LF is a high delay function location analysis tool based on kprobe and interrupt timerKprobe lf can locate and analyze most kernel functions. When the delay is set sufficiently, you can also observe the stack of normal delay functions1.1 why kprobe lfBecause this tool has two important settings, one is degree and the ...

Undertaking ZONE of linux Kernel Things , the physical memory of a node is managed by dividing it into zone s as needed, and each node is managed by pg_data_t Manage (refer to if you want to know) SPARSE(3) of the physical memory model for those things in the linux kernel For NUMA systems: Each node has its own local memory, so it has its ow ...

Real high-level usage of vim (visual mode, last line mode, edit mode) As a powerful, reliable and efficient text editor, vim is deeply loved by users who use Linux system. It is no exaggeration to say that they will not use vim text editor. Even if sed, awk and grep swordsmen use it again 6, they are helpless in the face of massive text conten ...

Introduction to shell script Absrtact: briefly introduce the knowledge related to shell script, including variables, strings, arrays, operations, functions, script debugging, etc. 1, shell script shell is an application program of Linux system. It starts, pauses, stops the program or controls the computer by accepting the commands en ...

preface Recently, I chose the elective course of Linux kernel principle. Although the class is relatively short, the content involved can only cover a small part of Linux knowledge, the teacher's level is really high and the knowledge is very in-depth. The small assignment this time is to write C language program under Linux platform to realiz ...

preface As an open source operating system, Linux server is widely used because of its significant advantages of security, efficiency and stability. The following mainly optimizes the security of Linux system from the perspective of account security, system boot and login control User account is the identity certificate of computer users. ...