Understanding of absolute paths and relative paths under Linux

If you're going to switch to the ETC directory in the current directory then use this CD etc This is the relative path, and this is the way to go back to the root directory under the CD/ETC directory Absolute Path, the absolute path file in front of a/.

There are relative paths that are sometimes easier to manipulate, such as I have a directory/home/test/study/home/test/test so I don't have to enter a long path when I switch from the first directory to the second directory. I just need to enter the CD. /test.

CD/Back to the root directory
Cd/etc back to the root directory under the ETC directory, the absolute path path is written from the root directory.

Cd. Current directory CD: Upper Directory

CD ~ Go back to your own root directory

CD ~test back to the user's root directory

PWD Displays the current directory

mkdir Create a new directory

RmDir to delete an empty directory with empty content

Understanding of absolute paths and relative paths under Linux