Brief introductionThis article shows step by step how to generate a simple Linux kernel patch and submit it it to the Linux community. To show the steps for submitting patches to the community. English name of this article: "Submit Patches Step by Step" Author brief introductionXie Baoyou, who has worked on the programming front line ...
Posted by pspeakman on Mon, 14 Oct 2019 19:14:21 -0700
yum source configuration is often used in work, especially when installing databases, it is time-consuming to install dependency packages one by one, so it is enough to configure yum installation directly.
1. yum configuration instructions (reprinted in this section)
The configuration file for yum is divided into two parts: main and repositor ...
Posted by zimmo on Mon, 14 Oct 2019 17:46:04 -0700
This article focuses on the use of regular expressions in shell scripts.
Regular expressions are divided into basic Regular Expression and Extended Regular Expression.
It is not a tool program, but a standard basis for string processing. It uses a single string to search and match a series of strings that conform to a certain grammati ...
Posted by cfemocha on Mon, 14 Oct 2019 17:45:41 -0700
< font color = Red > No reprinting, no handling </font >
First, the browser can not open blog.jd.com: DNS has been configured, the ultimate reason: this graphical CentOS7 uses dncp to obtain ip, DNS also access the gateway; Solution: Fixed IP, set DNS manually, and confirm / etc/reslov.conf
Two, NFS permissi ...
Posted by Cut on Mon, 14 Oct 2019 10:11:20 -0700
# selenium pypi address
Catalog:I. Initialization2. Element Search3. select Label Operation4. Executing js scripts5. iframe operation6. Action and Action ChainVII. Abnormal handlingVIII. Withdrawal Procedure
from selenium import webdriver
Posted by greenie__ on Mon, 14 Oct 2019 09:11:13 -0700
This paper introduces python's method of reading and writing LMDB files in detail.
The full name of LMDB is Lightning Memory-Mapped Database (lightning-fast memory mapping database). Its file structure is simple, including a data file and a lock file:
LMDB files can be opened by multiple processes at th ...
Posted by ecco on Mon, 14 Oct 2019 07:23:57 -0700
How Kubernetes manages storage resources.
First we will learn about Volume and how Kubernetes provides storage for containers in clusters through Volume; then we will practice several commonly used Volume types and understand their respective application scenarios; finally, we will discuss how Kubernetes separates cluster administrators from c ...
Posted by mbeals on Mon, 14 Oct 2019 06:14:07 -0700
Following up the following article: Backup database for introduction to MySQL database
Installation environment instructions
[root@~]# cat /etc/redhat-release
CentOS release 6.5 (Final)
[root@~]# uname -r
Because it is a simulated environment, the master and slave libraries are on the same se ...
Posted by likethegoddess on Sun, 13 Oct 2019 20:22:25 -0700
awk of shell three swordsmen
In Linux/UNIX system, awk is a powerful editing tool. It reads input text line by line, searches according to the specified matching mode, formats and outputs qualified content or filters it. It can realize quite complex text operation without interaction. It is widely used in Shell scripts to complete various aut ...
Posted by nick5449 on Sun, 13 Oct 2019 19:14:11 -0700
case multi-branch statement
The structure of case statement:
Execute different command lines for different values of variables
case variable value in
Command Sequence 1
Command Sequence 2
Default command sequence
Character type recognition:
Prompt the user to enter a character ...
Posted by merrydown on Sun, 13 Oct 2019 18:14:14 -0700