Two tools for finding files in the file system are recommended

As we all know, in Linux or Unix like file systems, if you want to find a file through the file name keyword, you can use the find Command. Then this article will recommend two tools that can quickly find files, which have better performance than the find command and can replace the use of find in some scenarios.mlocateMost Linux distributions ...

Posted on Fri, 03 Dec 2021 09:24:41 -0500 by mrdance

Operating system -- process synchronization

Experiment 2 process synchronization 1, Purpose of the experiment: Master basic synchronization algorithms and understand the essence of classical process synchronization problems; Learn to use the process synchronization mechanism of Linux and master the use methods of relevant API s; Can use the semaphore mechanism and adopt a variety of sync ...

Posted on Fri, 03 Dec 2021 09:10:25 -0500 by climbjm

OAI 5G core network installation

preface In the last blog, gNB was successfully installed using OAI, and then the 5G core network of OAI was installed. The main reference tutorials are as follows: https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-fed/-/blob/master/README.md PS: because the core network is deployed through docker, it may be difficult to understand if you don' ...

Posted on Fri, 03 Dec 2021 06:52:50 -0500 by Genesis730

Stand alone container network

Based on linux kernel 5.4.54Yesterday I shared the principle of veth:veth principle -- the sending and receiving path of data packets when two containers communicate through vethGenerally, containers do not communicate directly through veth, but through docker0 bridgeToday, analyze the communication path of the container through veth and docker ...

Posted on Fri, 03 Dec 2021 05:59:53 -0500 by mulysa

Linux PATH, PATH variable $PATH

Path problem under Linux Environment configuration is a big difficulty for everyone to learn Linux, especially the various path configurations. Today, let's talk about two or three things about PATH. 1. First, what is a path? PATH, the PATH in the computer system is for files. There are absolute paths and relative paths: Absolute path, wh ...

Posted on Thu, 02 Dec 2021 23:47:52 -0500 by fluvius

Jetson full platform installation ROS2

Platforms supported by ROS2 Linux (Ubuntu Focal(20.04)) macOS Windows ROS2 is really cross platform, and ROS1 only supports Linux. A great God said, don't do ROS1, go directly to ROS2~~ Install ROS2 (foxy) to NVIDIA Jetson development kit Download my script: https://gitee.com/lhamojam/installROS2Or original address: https://github.com/jetso ...

Posted on Thu, 02 Dec 2021 21:57:17 -0500 by oboedrew

##snmpd service deployment and deployment

Deploy snmpd service yum install -y net-snmp net-snmp-utils # Start service systemctl start snmpd # Out of Service systemctl stop snmpd snmpwalk command The snmpwalk command is a tool for operating snmpd services. You can see that there are three version interfaces connected to snmpd through the - v parameter in - h, including: Only version 3 ...

Posted on Thu, 02 Dec 2021 21:23:02 -0500 by gdboling

Three ways for linux to view all users

Use the / etc/passwd file, getent command and compgen command to view the user information in the system.As we all know, the user information in the Linux system is stored in the / etc/passwd file.This is a text file containing basic information of each user. When we create a user in the system, the details of the new user will be added to this ...

Posted on Thu, 02 Dec 2021 19:49:50 -0500 by dloeppky

Chapter III Learning Blog (DNS Server Deployment)

Chapter 4 of the Linux Refinement Tour! Tip: Here you can add a catalog of all articles in the series, which you need to add manually yourself Example: Chapter 1 Use of pandas to get started with Python machine learning Tip: After writing an article, the catalog can be automatically generated and how to generate a help document that you can ...

Posted on Thu, 02 Dec 2021 13:59:42 -0500 by glc650

Variables in shell scripts

Definition of variables A variable is the address of an area of memory (a string representing the address of memory)Significance of variables: Commands cannot operate on constantly changing targets, and using a fixed string of characters to represent an unstable target can solve this problem 2. Definition of variables in shell scripts 1. ...

Posted on Thu, 02 Dec 2021 12:11:28 -0500 by koopmaster