BASH Directories

List Directories By Last Modified Date
ls -t

Of if you want to do it in reverse:

ls -tr

Reproduce Directory Structure Sans Contents
Copy the file structure:

find. -type d -print0 >dirs.txt and

Reproduce the file structure:

xargs -0 mkdir -p <dirs.txt

This will work for folder structures that have spaces in the names.

Thanks to Stackoverflow.com.

Show Size Of Directories
Sorted by time...

du --time -s */ |sort -k 2

Sorted by size..

du --time -s */ |sort -k 1 -h