BASH Directories
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Delete Only Directories
find . -maxdepth 1 -mindepth 1 -type d -exec rm -rf '{}' \;
Create Multiple
mkdir {01..12}
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
Test If A Directory Exists
test -d /path/to/directory
You can use this to make sure a directory exists before copying or moving a file into it.
test -d /mnt/usb/backup && mv /home/website/backup-20140901.zip /mnt/usb/backup/