002day -- common linux commands and common linux commands

002day -- common linux commands and common linux commands

Exit terminal command: exit

Command to disable Linux: init 0

How to switch the virtual terminal: Ctrl + Alt + F [1 ~ 6]

Who command: check how many terminals are open

Whoami command: Get the current user name

Date command: view the time and date

Cal command: View calendar

Clear command: clear screen (or Ctrl + L)

Su command: su-root (root user running and access)

Passwd command: Change User Password

Pwd command: displays the user's current working directory in an absolute path

Ls command: used to display the target list

Cd command: used to determine and switch Directories

Mkdir: Create the folder mkdir-p/boot/aaa, create boot first, and then create aaa

Ls-d/boot/a to view files in the specified directory

Mv command: mv/boot/aaa/boot/bbb move aaa to boot and rename aaa to bbb

Rm-rf/boot/aaa delete all sub-files in aaa and Its Directory

Rmdir command: delete an empty directory

Touch command: Creates the aaa.txt file by using touch aaa.txt.

Cat command: View File Content

Head: head-n 1/tmp/aaa.txt displays the first line of the file

Added tail-f/tmp/aaa.txt Dynamic Monitoring File

Echo qwer>/tmp/aaa.txt write qwer to the file to overwrite the original content

Echo qwer>/tmp/aaa.txt writes qwer to the file in append Mode

More command: each time a screen (one page) file content is displayed on the screen more + 3 aaa.txt display log content from the third line