ln -s ../../../index.php index.txt
In Kali Linux (or any other Linux distribution), a symbolic link (also known as a soft link) is a type of file that acts as a pointer or reference to another file or directory.
Symbolic links are used to create shortcuts to files or directories, making them accessible from different locations in the file system.
Symbolic links are different from hard links in that they are independent files that point to a target, whereas hard links are multiple directory entries for the same file.
so we will use ln -s command
ln: This is the command for creating links in Linux-s: This is an option for ln that specifies that a symbolic link should be created.../../../index.php: This is the source file or directory. In this case, it's a relative path that goes up three directories (indicated by ../../..) from the current location and then references a file named "index.php." This means that it's looking for "index.php" in a parent directory three levels up from the current location.index.txt: This is the name of the symbolic link that will be created in the current directory. The link will point to the target file specified above.For example, let's say you have the following directory structure:

In summary, running this command will create a symbolic link named "index.txt" in the current directory, and when you access "index.txt," it will behave as if you're accessing the "index.php" file located three directories above the current location.