Baidu search: Lan Yiyun [detailed explanation of commonly used commands in Ubuntu]

The following is a detailed explanation of some commonly used Ubuntu commands:

1. ls: List files and folders in the current directory.

   • Example:
     ls

2. cd: Switch to the specified directory.

   • Example:
     cd /path/to/directory

3. pwd: Display the current directory path.

   • Example:
     pwd

4. mkdir: Create a new directory.

   • Example:
     mkdir directory_name

5. rm: Delete files or directories.

   • Example: Delete file:
     rm file.txt
   • Example: Delete a directory and its contents:
     rm -r directory

6. cp: Copy files or directories.

   • Example: Copy files:
     cp file.txt destination
   • Example: Copy a directory and its contents:
     cp -r directory destination

7. mv: Move files or directories, and can also be used to rename files or directories.

   • Example: Moving files:
     mv file.txt destination
   • Example: Moving Directory:
     mv directory destination
   • Example: Rename a file or directory:
     mv old_name new_name

8. touch: The access time to create a new file or update a file.

   • Example:
     touch file.txt

9. cat: View the contents of the file.

   • Example:
     cat file.txt

10. grep: Search the file for the specified pattern.

    • Example:
      grep pattern file.txt

11. chmod: Modify the permissions of a file or directory.

    • Example:
      chmod permissions file.txt

12. chown: Modify the owner of the file or directory.

    • Example:
      chown user:group file.txt

13. apt-get: Package manager for installing, upgrading and removing software packages.

    • Example: Install package:
      sudo apt-get install package_name
    • Example: Upgrade package:
      sudo apt-get upgrade
    • Example: Remove package:
      sudo apt-get remove package_name

14. sudo: Execute the command with administrator privileges.

    • Example:
      sudo command

15. top: Displays the processes running in the system and the usage of system resources.

    • Example:
      top

16. ifconfig: Display the configuration information of the network interface.

    • Example:
      ifconfig

17. ping: Send a network request to the specified host to test the connection.

    • Example:
      ping host

18. ssh: Log in to the remote host through the secure remote connection protocol.

    • Example:
      ssh username@host

These are some common commands in Ubuntu systems. By becoming familiar with and mastering these commands, you can operate and manage your Ubuntu system more efficiently.

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