The "ls P" command is not a standard Unix or Linux command. Therefore, it doesn't have a specified behavior as other commands such as "ls" or "cd". It might be an alias created by someone to replace the "ls" command with some additional options or flags.
If you want to know the functionality of the "ls" command, it is used to list the contents of the current directory. By default, it displays the names of files and directories in a simple list format. However, it can take various options and arguments to modify its behavior, such as displaying additional file metadata like file size, permissions, modification time, and sorting by various attributes.
Therefore, it is essential to understand the basic functionality of the command before using any variations or aliases.