The ls -r command in Linux is used to list files and directories recursively. This means it will display the contents of the specified directory and all its subdirectories.

Usage:

bash


ls -r 

Options:

• -r: This flag stands for "recursive." It will traverse through all subdirectories.

Example:

To list all files and directories in the current directory and its subdirectories, you can simply run:

bash


ls -r

If you want to list the contents of a specific directory recursively:

bash


ls -r /path/to/directory

Additional Tips:

• Combine with other options like -l for a detailed list (permissions, size, modification date):

  bash
  
  
  ls -lr

• Use with grep to filter results:

  bash
  
  
  ls -r | grep "pattern"

This command is helpful for getting an overview of all files in a directory tree, especially in complex directory structures.