Linux Learning Notes < command introduction >

• Command prompt

　　[Email protected] ~]#

　　which

Root: currently logged in user

HGS: Host Name

~: Current directory (home directory), for the root user, home directory:/root , for ordinary users, home directory:/home/{username}

　　　　　#: Super user prompt, normal user prompt:$

• directory where you switch: CD

English original meaning:change Directory

• • Simplified operation:
    
    • CD ~ Enter the current user home directory
    • CD-Go to last directory
    • Cd.. Go to the top level directory

• Query user's current directory: PWD
  

English original: p ring Span style= "color: #ff0000;" >w orking D irectory

• query contents in directory: LS
  • ls [options] [file or directory]
  • options:
    • -a   displays all files, including hidden files ("."). Beginning of file)
    • -l    display details
    • -d   View Directory Properties
    • strong>-h   humanized display file size
    • -I display inode

For example, execution: Ls-lh gets the following result:

　　

• • -rw-r--r--(R read W write x executable)
    
    • -File type (-file d directory l soft link file)
    • Rw-u owner
    • r--G-affiliated groups
    • r--O Other People
• Build directory: mkdir
  • mkdir-p [directory Name]
    
    • -P Recursive creation

Linux Learning Notes < command introduction >