How to go one directory back in Linux?

Navigating the Linux File System: A Step-by-Step Guide to Going One Directory Back

Understanding the Linux File System

Before we dive into the process of navigating the Linux file system, it’s essential to understand the basics of how it works. The Linux file system is a hierarchical structure that allows users to organize and manage files and directories. The file system is divided into several levels, including the root directory, subdirectories, and files.

The Root Directory

The root directory is the topmost level of the file system, and it’s denoted by the / symbol. It’s the default directory that new users are prompted to create when they first log in to the system. The root directory contains the system files and is the starting point for all other directories.

Navigating the File System

To navigate the file system, you can use the cd command, which stands for "change directory." The cd command allows you to move up or down the directory hierarchy. Here’s how to use the cd command:

• cd / – Moves to the root directory.
• cd .. – Moves to the parent directory.
• cd .. / – Moves to the parent directory of the current directory.
• cd .. /dir – Moves to the parent directory of the current directory and then to the specified directory.

Going One Directory Back

To go one directory back, you can use the cd .. command. This command moves you to the parent directory of the current directory. Here’s an example:

$ cd

$ cd ..

In this example, the cd command is used to change the current directory to the parent directory. The cd .. command then moves you to the parent directory.

Using the .. Command with Multiple Levels

When you use the .. command with multiple levels, it moves you to the parent directory of the current directory. Here’s an example:

$ cd

$ cd .. /dir1

$ cd .. /dir2

In this example, the cd command is used to change the current directory to the parent directory of the current directory. The cd .. /dir1 command then moves you to the parent directory of the current directory, and the cd .. /dir2 command then moves you to the parent directory of the parent directory.

Using the .. Command with Multiple Levels and Files

When you use the .. command with multiple levels and files, it moves you to the parent directory of the current directory and then to the specified file. Here’s an example:

$ cd

$ cd ..

$ cd /dir1

$ cd /dir1/file1.txt

In this example, the cd command is used to change the current directory to the parent directory of the current directory. The cd .. command then moves you to the parent directory of the current directory, and the cd /dir1 command then moves you to the parent directory of the parent directory. The cd /dir1/file1.txt command then moves you to the parent directory of the parent directory and then to the specified file.

Using the .. Command with Multiple Levels and Subdirectories

When you use the .. command with multiple levels and subdirectories, it moves you to the parent directory of the current directory and then to the specified subdirectory. Here’s an example:

$ cd

$ cd ..

$ cd /dir1

$ cd /dir1/subdir1

$ cd /dir1/subdir1/subdir2

In this example, the cd command is used to change the current directory to the parent directory of the current directory. The cd .. command then moves you to the parent directory of the current directory, and the cd /dir1 command then moves you to the parent directory of the parent directory. The cd /dir1/subdir1 command then moves you to the parent directory of the parent directory, and the cd /dir1/subdir1/subdir2 command then moves you to the parent directory of the parent directory and then to the specified subdirectory.

Tips and Tricks

• To move to the root directory, use the cd command with no arguments.
• To move to the parent directory of the current directory, use the cd .. command.
• To move to the parent directory of the parent directory, use the cd .. .. command.
• To move to the parent directory of the parent directory and then to the specified file, use the cd .. /dir1/file1.txt command.
• To move to the parent directory of the parent directory and then to the specified subdirectory, use the cd .. /dir1/subdir1 command.

Conclusion

Navigating the Linux file system can seem daunting at first, but with practice and experience, you’ll become more comfortable using the cd command to move up or down the directory hierarchy. Remember to use the .. command to move to the parent directory, and to use the .. command with multiple levels to move to the parent directory of the current directory and then to the specified file or subdirectory. With these tips and tricks, you’ll be able to navigate the Linux file system with ease.