Absolute path and relative path
An absolute path is a path from the root directory to a directory, which is written from the root directory, i.e./
Relative paths are written from the path of the user's current directory
Directory-related Operations
CD switch path for example: cd/var/www switch to/var/www/path
PWD Displays the current path
mkdir Create a new directory
RmDir Delete an empty directory
Do not describe the operation, you can use the man to view
Copy move and Delete commands
Cp,mv,rm
Modify Default File Permissions
File Special Permission Suid,sgid,sbit
Modify the X execution permissions of the owner, group, and others individually
When a binary program has suid, the user will have the owner's permission for a short time when using the program
Ditto for the Truth
Observing file Types files
Summarize
The file and catalogue management of the learning records of the Linux private dishes of brother Bird