Four installation and deployment methods of database

Database installation Experimental environment Redhat8.3 Method 1: use the MySQL repository to install and deploy mysql 1, Add MySQL repository Add the MySQL Yum repository to the repository list of the system. This is a one-time operation that can be performed by installing the RPM provided by mysql. Follow these steps: Go to th ...

Added by Dragoa on Sun, 28 Nov 2021 15:11:38 +0200

Chapter 6 Advanced Shell script programming

4.2.4 while loop Format: while COMMANDS; do COMMANDS; done while CONDITION; do Circulatory body done explain: CONDITION: cycle control CONDITION; Make a judgment before entering the cycle; Judgment will be made again after each cycle; If the CONDITION is "true", a loop is executed; The loop is terminated until the CONDITION ...

Added by easethan on Sun, 07 Nov 2021 01:01:19 +0200

Detailed explanation of zero foundation to proficient sed command

preface This section explains the usage of sed in detail, combined with the regular expressions learned before. The article is completely from Xiaobai's point of view. It took a long time to edit it so that everyone can understand and operate it as much as possible. sed introduction 1. sed introduction vi is to edit text interacti ...

Added by clarket on Sat, 06 Nov 2021 08:57:03 +0200