Table of contents
Virtualization software and installation
Connecting to Linux System Remotely
Extended - Virtual Machine Snapshot
View command help and manual (--help)
Arguments and Options for the ls Command
Combination of ls options and parameters
Directory switching related commands
Relative paths, absolute paths, and special path symbols
relative path and absolute path
mkdir command (create directory)
cat command (view file content)
more command (view file content, support page turning)
rm command (delete file folder)
grep command (keyword filtering)
wc command (do quantity statistics)
backtick ` (command execution)
redirection characters (> and >>)
tail keeps track of file changes
Three working modes of the editor
Five, Linux users and permissions
root user (super administrator)
Modify permission control - chmod
Modify permission control - chown
Six, Linux practical operation
Virtual machine configuration fixed IP
Downloads and network requests
Edit view the specified process
Set environment variables yourself
1. Operating system overview
2. Initial Linux
The Birth of Linux
Linux kernel
Linux distribution
summary
3. Virtual machine
Know the virtual machine
Virtualization software and installation
https://blog.csdn.net/weixin_62332711/article/details/128695978Connecting to Linux System Remotely
summary
Extended - Virtual Machine Snapshot
Four, Linux basic commands
View command help and manual (--help)
Linux directory structure
Linux command basic format
ls command introduction
Arguments and Options for the ls Command
-a option
-l option
Combination of ls commands
Combination of ls options and parameters
-h option
summary
Directory switching related commands
cd command
pwd command
summary
Relative paths, absolute paths, and special path symbols
relative path and absolute path
special path character
summary
mkdir command (create directory)
mkdir command
mkdir -p option
summary
file operation command
touch command (create file)
cat command (view file content)
more command (view file content, support page turning)
cp command (copy file folder)
mv command (move file folder)
rm command (delete file folder)
-r -f options
wildcard
Notice
find command
which command
find command
Find files by filename
wildcard
Find files by file size
summary
grep wc pipe character
grep command (keyword filtering)
wc command (do quantity statistics)
pipe character
summary
echo , tail and redirectors
echo command (output)
backtick ` (command execution)
redirection characters (> and >>)
tail command (trace file)
tail keeps track of file changes
summary
vi\vim editor
introduce
Three working modes of the editor
command mode
bottom line command pattern 
summary
Five, Linux users and permissions
root user (super administrator)
su and exit commands
sudo command
summary
User and Usergroup Management
User Group Management
User Management
getent command
summary
View access control
Cognitive rights information
rwx
summary
Modify permission control - chmod
Modify permission control - chown
Six, Linux practical operation
Various tips (shortcut keys)
Software Installation
yum command
summary
systemctl
soft link
date, time zone
date command
Modify Linux time zone
ntp program
IP address, hostname
IP address
CPU name
DNS
summary
Virtual machine configuration fixed IP
network transmission
Downloads and network requests
ping command
wget command
curl command
summary
port
port
View port usage
namp
netstate
summary
process management
process
View the specified process
close process
summary
Host Status
View system resource usage
top command
Disk information monitoring
Network Status Monitoring
summary
environment variable
environment variable PATH
$ sign
Set environment variables yourself
Upload Download
download upload
rz, sz command
summary
compression, decompression
Compression format
tar command
zip、unzip
summary
