1. Basic knowledge of Linux
Linux version of I386/I686/X86-64/PCC, etc... The difference
The understanding of the Inode of Linux (the interview, once asked, is to find space, but still cannot create new directories and files, a big reason is that the inode is already full)
How to redirect the output path of the keepalived log
Why command not found appears when you add sudo before executing some commands in Linux
Three ways to configure Linux environment variables--/etc/profile,~/.bashrc,shell
In the Linux shell variable setting, "$?" Represents the
2, Linux common commands
Groupadd command Detailed (example)
The Useradd command usage method of Linux command detailed explanation
The Useradd command usage method of Linux command detailed explanation
CHGRP----Modify the group to which the file or directory belongs
Linux command: Time
CHATTR instructions are used: (interview, has been asked, under what circumstances, even the root user, RM-RF command can not delete a file, this is said to be chattr, the exact point is its +i option)
Linux Memory Cleanup/release command
Useradd Command Detailed
Gunzip and unzip extract files to the specified directory
Tips for solutions to Sudo:cd:command not found
3, Linux serial communication
Linux Serial read/write (i)
Detailed Linux serial communication development
Linux Serial Port programming detailed
Linux Serial port programming
A little experience about the serial communication under Linux
Ubuntu View and configure the serial port
4. Linux common system ①centos A, environmental deployment
centos7.0 Installation Tutorial
B, Basic knowledge
Replace the CentOS Yum source with the domestic Aliyun source
CentOS6.6 network card static IP settings
C, frequently asked questions
How to Fix GNOME License not accepted Issue on CentOS 7
SSH login Very slow problem solving method
②ubuntu
How to configure fixed IP under Ubuntu14.04
Common VI Editor Command line
The use of the input method under Ubuntu