How to go back a directory in terminal Linux?

Navigating the Directory Hierarchy in Linux

Linux is a powerful operating system that allows users to manage files and directories with ease. One of the most useful features of Linux is its ability to navigate the directory hierarchy, which is the structure of the file system. In this article, we will explore how to navigate the directory hierarchy in Linux, including how to go back a directory.

Understanding the Directory Hierarchy

Before we dive into how to navigate the directory hierarchy, let’s take a look at the basic structure of the file system. The file system is divided into several levels, including:

• Root directory: The topmost directory in the file system, which is /.
• Subdirectories: Directories that are located inside the root directory, such as /home, /usr, and /var.
• Files: Individual files that are located inside the subdirectories, such as example.txt, image.jpg, and script.py.

Navigating the Directory Hierarchy

To navigate the directory hierarchy, you can use the cd command, which stands for "change directory". The cd command allows you to move between directories in the file system.

• Using the cd command: The cd command is used to change the current directory. You can use the following syntax to change directories:

  • cd / – Changes the current directory to the root directory.
  • cd /home/user – Changes the current directory to the /home directory.
  • cd /home/user/documents – Changes the current directory to the /home/user/documents directory.

• Using the pwd command: The pwd command is used to print the current working directory. You can use the following syntax to print the current working directory:

  • pwd – Prints the current working directory.

Navigating Subdirectories

Once you have changed to a subdirectory, you can navigate to the next level of the directory hierarchy using the cd command.

• Using the cd command with a relative path: You can use a relative path to navigate to a subdirectory. For example:

  • cd /home/user/documents – Changes the current directory to the /home/user/documents directory.
  • cd .. – Changes the current directory to the parent directory.
  • cd ..../ – Changes the current directory to the parent directory of the parent directory.

• Using the cd command with an absolute path: You can use an absolute path to navigate to a subdirectory. For example:

  • cd /home/user/Downloads – Changes the current directory to the /home/user/Downloads directory.
  • cd /home/user/Downloads/ – Changes the current directory to the /home/user/Downloads/ directory.

Navigating Files

Once you have changed to a subdirectory, you can navigate to a file using the cd command.

• Using the cd command with a file name: You can use the file name to navigate to a file. For example:

  • cd /home/user/documents/example.txt – Changes the current directory to the /home/user/documents/example.txt file.

• Using the cd command with a relative path: You can use a relative path to navigate to a file. For example:

  • cd /home/user/documents – Changes the current directory to the /home/user/documents directory.
  • cd .. – Changes the current directory to the parent directory.
  • cd ..../ – Changes the current directory to the parent directory of the parent directory.

Going Back a Directory

To go back a directory, you can use the cd command with a relative path. For example:

• cd .. – Changes the current directory to the parent directory.
• cd ..../ – Changes the current directory to the parent directory of the parent directory.
• cd ..3 – Changes the current directory to the parent directory of the parent directory of the parent directory.

Tips and Tricks

• Use the pwd command to print the current working directory: The pwd command is used to print the current working directory. You can use the following syntax to print the current working directory:

  • pwd – Prints the current working directory.

• Use the cd command with a file name to navigate to a file: You can use the file name to navigate to a file. For example:

  • cd /home/user/documents/example.txt – Changes the current directory to the /home/user/documents/example.txt file.

• Use the cd command with a relative path to navigate to a file: You can use a relative path to navigate to a file. For example:

  • cd /home/user/documents – Changes the current directory to the /home/user/documents directory.
  • cd .. – Changes the current directory to the parent directory.
  • cd ..../ – Changes the current directory to the parent directory of the parent directory.

Conclusion

Navigating the directory hierarchy in Linux is a powerful feature that allows users to manage files and directories with ease. By using the cd command, you can change directories and navigate to subdirectories and files. Remember to use the pwd command to print the current working directory and to use relative paths to navigate to files and directories. With practice, you will become proficient in navigating the directory hierarchy in Linux.