Linux Common commands

1. Delete Directory

RM-RF Directory Name
-R is recursive down, no matter how many levels of directory, delete
-F is directly forcibly deleted, without any hint of meaning
Reference: https://zhidao.baidu.com/question/210217197.html

2. View port number

UFW status

UFW Allow/deny Port number open/close port number

3. Vim Editor

GG Jump to file header

Shift+g jump to end of file

Number of rows +g jump to the specified line, example jumps to line 123:123GG

: Set NU or: Set number//Display line numbers;

: Set Nonu or: Set Nonumber//Turn off auto display line number;

: Ignore case when set IC is searched;

: Set Noic does not ignore case when looking.

Linux Common commands