In this chapter, we will be covering the following recipes:
- Generating files of any size
 - The intersection and set difference (A-B) on text files
 - Finding and deleting duplicate files
 - Working with file permissions, ownership, and the sticky bit
 - Making files immutable
 - Generating blank files in bulk
 - Finding symbolic links and their targets
 - Enumerating file type statistics
 - Using loopback files
 - Creating ISO files and hybrid ISO
 - Finding the difference between files, and patching
 - Using head and tail for printing the last or first 10 lines
 - Listing only directories - alternative methods
 - Fast command-line navigation using pushd and popd
 - Counting the number of lines, words, and characters in a file
 - Printing the directory tree
 - Manipulating video and image files