Finds all zip files in the current directory, and its sub-directories, then unzips them into folders in the current directory that are named the same as the zip files and sub-directory names. For example: ./subdir/file.zip -> ./subdir_file/extractedfile. Tested on Ubuntu 12.04 with Unzip 6.00.

DirectoryUnzip.sh

#!/bin/bash

# Extracts all zipfiles in subdirectories to current directory.

for source in $(find . -name "*.zip")
do
	unzip -tq $source
	retval=$?
	if [ $retval -eq 0 ]
		then
		dest=$(echo $source | sed -e 's|.zip||g' -e 's|/|_|g' -e 's|\._||g')
		unzip -u $source -d $dest
	fi
done