How do I navigate directories?

To navigate directories in a Linux environment, you can use the following commands:

pwd: This command stands for "print working directory." It displays the current directory you are in.
```
pwd
```
cd: This command stands for "change directory." You can use it to move between directories.
- To navigate to a specific directory:
```
cd /path/to/directory
```
- To go up one level in the directory hierarchy:
```
cd ..
```
- To return to your home directory:
```
cd ~
```
- To navigate to the previous directory you were in:
```
cd -
```
ls: This command lists the contents of the current directory. You can use it to see which directories and files are available to navigate to.
```
ls
```

By using these commands, you can effectively navigate through the directory structure in a Linux environment.