unpack

#!/bin/bash
set -e

filename=$(basename "$1")
filepath=$(dirname "$1")
fileinfo=$(file -i "$1")

cd "$filepath"
destination="${filename%.*}-unpacked"

# zip
if [[ $fileinfo =~ "application/zip" ]]; then
	mkdir "$destination"
	unzip "$filename" -d "$destination"
	echo "Extracted file to $destination"

#gzip
elif [[ $fileinfo =~ "application/gzip" ]]; then
	gzip -dk "$filename"

#bzip2
elif [[ $fileinfo =~ "application/x-bzip2" ]]; then
	bzip2 -dk "$filename"

#bzip
elif [[ $fileinfo =~ "application/x-bzip" ]]; then
	bzip -dk "$filename"
#rar
elif [[ $fileinfo =~ "application/x-rar" || $fileinfo =~ "application/vnd.rar" ]]; then
	mkdir "$destination"
	unrar x "$filename" "$destination"
	echo "Extracted file to $destination"

#tar
elif [[ $fileinfo =~ "application/x-tar" ]]; then
	mkdir "$destination"
	tar -xvf "$filename" -C "$destination"
	echo "Extracted file to $destination"

#7zip
elif [[ $fileinfo =~ "application/x-7z-compressed" ]]; then
	mkdir "$destination"
	7za e "$filename" -o"$destination"
	echo "Extracted file to $destination"
else
	echo "Unknown compression!"

fi