Common DOS Commands

 

• • • DOS operating system
  • • DOS is the abbreviation of "Disk Operating System" in English, which means "disk operating system" in Chinese.
    • DOS is a single-user, single-task operating system.
    • An operating system launched by Microsoft.

 

• • • Enter the DOS command interface

　　　　　　　　Win + R key to start running

　　　　　　　　Enter cmd (Commond command) and press Enter to enter the DOS interface

 

• • • DOS command
  • • It is a command of the DOS operating system and a disk-oriented operation command.
    • It mainly includes directory operation commands, disk operation commands, file operation commands and other commands
    • not case sensitive.

 

• • • Common DOS Commands
  • • DIR(Directory): Display directory
  • • CD (Change Directory): change or display the current directory
  • • CLS (clear screen): clear the screen
  • • Switch drive letter: Quickly change drive letter, for example: d: is to switch to D drive
    • Tab : auto-completion key
    • ↑ ↓ : View historical statements
  • • MD (Make Directory): create subdirectories
    • RD(Remove Directory): remove subdirectory
    • Copy copy file
    • Del (delete) delete file

 

• • • Detailed command
  • • Dos is called a directory (subdirectory), and window is called a folder (subfolder)
    • Familiar with operating under the window
  • • View subfolders and files under a folder dir---directory file /p /w
    • Create a new folder md make directory
    • Remove a folder rd remove directory (directory must be empty)
    • Change the current folder cd change directory cd.. (Tab key usage)

 

• • • Clear screen command cls clear screen
    • Helps autocomplete filenames or folders
  • • Tab键
  • • View command history
  • • up and down arrow keys

 

• • • file copy
  • • Copy source file destination file
    • copy d:\log.txt  d:\myjava\log.txt
    • copy \log.txt log2.txt
  • • file deletion
  • • Del  log.txt
    • Del *.* delete all files in the current directory (need to confirm whether to delete)

 

 

• • • Common directory operation commands - DIR (display directory)
  • • Type: Internal command
      Function: List all or specified file directories on the disk. The displayed content includes volume label, file name, file size, file creation date and time, directory name, remaining disk space, etc.

      Format: DIR [drive][path][filename][/P][/W][/A:property][/S]

  • • /P: Pause the display when the displayed information exceeds one screen, and continue to display until any key is pressed.
    • /W: Display file names and directory names in a horizontal arrangement, 5 per line (do not display file size, creation date and time)
    • /A (attributes): Only show files with specified attributes. Without this parameter, DIR shows all files except system and hidden files.
    • /S: List all contents in the specified directory and its subdirectories (but not system files and hidden files)
    • Example: Display all files ending in WMA on the D drive.

　　　　　　　　D:> DIR * .EXE / S / P

• • • Common directory operation commands - CD (change or display the current directory)

 

 

• • • Type: Internal Command Format: CD [drive letter][path]
    • CD.. Return to the previous directory
    • CD\ returns to the root directory

 

 

• • • Common directory operation commands - MD (create subdirectories)

 

• • • Type: Internal Command
    • Format: MD [drive letter][path]<subdirectory name>
    • The drive letter and path in the command respectively indicate which drive and which directory the new subdirectory should be built on.
    • The last subdirectory name in the command is the name of the new subdirectory to be created and cannot be defaulted.
    • The same subdirectory cannot be created in a certain directory, and subdirectories with the same name can be created in different directories.
    • Example: Create directory B under D drive, C under B, and D under C.

　　　　　　　　D:>MD \B\C\D

 

 

• • • Common directory operation command - RD (delete subdirectory)

 

• • • Type: Internal Command Format: RD [drive letter][path]<subdirectory name>[/S][/Q]
    • The drive letter and path in the command respectively indicate which drive and which directory the subdirectory to be deleted is located in.
    • The last subdirectory name in the command is the subdirectory name to be deleted and cannot be defaulted.
    • /S: In addition to the directory itself, will delete all subdirectories and files under the specified directory. Used to delete directory trees.
    • /Q: Quiet mode, do not confirm when deleting a directory with /S.
    • Example: delete all directories and files under directory A in drive D.

　　　　　　　　D:>RD A /S

 

 

• • • Common file operation commands

 

• • • COPY: file copy command
    • DEL(Delete): delete file command

 

 

 

• • • Common file operation commands - COPY (file copy)

 

• • • Type: Internal Command Format: COPY <source file> [object file]
    • 1. The source file specifies where the file you want to copy comes from - [drive letter 1:] [path 1] [file name 1]
    • 2. The target file specifies where to copy the file - [drive letter 2:] [path 2] [file name 2]
    • 3. If the default drive letter is the current drive letter; if the path is the current directory, the default path can be used.
    • 4. The source file name cannot be defaulted, and the default target file name means that the file name will not be changed after copying.
    • Example: Copy the A.TXT file from the D drive to the C drive and change its name to B.TXT

　　　　　　　　D:>COPY A.TXT C:\B.TXT

 

 

• • • Common file operation commands - DEL (delete file)

 

• • • Type: Internal Command Format: DEL <filename>
    • The file name in this command can use wildcards to delete a batch of files at a time (but use it with caution to avoid misoperation)
    • Example: delete all files in the A directory of D drive

D:>del \A

D:>del \A *.*

• • • Once a file has been deleted from disk using del , it cannot be recovered.

 

　　　　　　　　Other DOS commands

• • DOS command shortcuts
• • (Drive letter:) : Quick change drive d:
  • Tab : auto-completion
  • ↑Arrow: Find query records up
  • ↓Arrow: Find query records down
  • exit : exit
• • network operation command
• • PING : test connection
  • IPCONFIG : Check network status
  • NETSTAT : show connection statistics
  • TRACERT : track network connections
  • PATHPING : route check command
  • NSLOOKUP : dns check command
  • NET : network management commands
  • Ver: Displays the version number of Windows