Common operation and maintenance commands

LINUX Detailed explanation of common operation and maintenance commands 1 <https://blog.csdn.net/bbwangj/article/details/78041963>  
LINUX Detailed explanation of common operation and maintenance commands II    <https://blog.csdn.net/bbwangj/article/details/78042382>
LINUX Detailed explanation of common operation and maintenance commands 3 <https://blog.csdn.net/bbwangj/article/details/78042472>

Linux The third swordsman grep Command details    <https://blog.csdn.net/bbwangj/article/details/73516257>
Shell Three swordsmen in text processing sed <https://blog.csdn.net/bbwangj/article/details/78620859> 
Shell Three swordsmen in text processing awk <https://blog.csdn.net/bbwangj/article/details/78620869>  
<https://blog.csdn.net/bbwangj/article/details/73516257>

grep,sed,awk Parameter description   <https://blog.csdn.net/bbwangj/article/details/73555918>
20 Efficient regular expressions <https://blog.csdn.net/bbwangj/article/details/74503049>

shell Basics

Shell Basic knowledge and character processing   <https://blog.csdn.net/bbwangj/article/details/78615115>
Shell Expressions and operators   <https://blog.csdn.net/bbwangj/article/details/78615137>
shell script - function <https://blog.csdn.net/bbwangj/article/details/80573550> 
<https://blog.csdn.net/bbwangj/article/details/78615137>shell script - Loop selection statement
<https://blog.csdn.net/bbwangj/article/details/80572570>
<https://blog.csdn.net/bbwangj/article/details/78615137>

Shell Application scenarios and working principles of scripts    <https://blog.csdn.net/bbwangj/article/details/78621039>
Shell From introduction to actual combat <https://blog.csdn.net/bbwangj/article/details/80337919>

Common scripts

Linux Common script commands for operation and maintenance <https://blog.csdn.net/bbwangj/article/details/73480381>

Shell The script monitors the normal opening of website pages   <https://blog.csdn.net/bbwangj/article/details/78089703>

shell Script monitoring php-fpm And automatically restart the service
<https://blog.csdn.net/bbwangj/article/details/81321174>

Script instance

Linux Three methods of adding user scripts in batch <https://blog.csdn.net/bbwangj/article/details/78034348>

Linux Commonly used in operation and maintenance shell Script instance (1) <https://blog.csdn.net/bbwangj/article/details/73480480>
Linux Commonly used in operation and maintenance shell Script instance (2)  <https://blog.csdn.net/bbwangj/article/details/78079009>
Linux Commonly used in operation and maintenance shell Script instance (3) <https://blog.csdn.net/bbwangj/article/details/78089690> 

Linux Commonly used in operation and maintenance shell Script instance (4)  
<https://blog.csdn.net/bbwangj/article/details/78089699>Linux Commonly used in operation and maintenance shell Script instance (6)  
<https://blog.csdn.net/bbwangj/article/details/79520936>shell Script monitoring system load ,CPU And memory usage
<https://blog.csdn.net/bbwangj/article/details/81320809> 

use shell The script monitors whether the process exists Start if it doesn't exist
<https://blog.csdn.net/bbwangj/article/details/81320834> 
Shell Script implementation Linux System and process resource monitoring <https://blog.csdn.net/bbwangj/article/details/81320896>

Shell Script implementation monitoring swap Space usage and view occupancy swap The process of   
<https://blog.csdn.net/bbwangj/article/details/81320932>SHELL Script monitoring JAVA The code of the process
<https://blog.csdn.net/bbwangj/article/details/81321046>

Shell Script implementation ftp Automatic upload and download of <https://blog.csdn.net/bbwangj/article/details/81321311>