#!/bin/bash
lstSupportedArchiveExts="rar,zip,tar,tar.bz2,tar.gz"
upck_zip='unzip "%f" -d "%d"'
upck_rar='unrar x "%f" "%d"'
upck_tar='tar -xf "%f" -C "%d"'
upck_tar_bz2='tar -xjf "%f" -C "%d"'
upck_tar_gz='tar -xzf "%f" -C "%d"'

find ./ -maxdepth 1 -type f | while read fileArchive; do
 fileArchive="${fileArchive#./}"
 echo "=======> $fileArchive <=======" | tr 'a-z' 'A-Z'
 for fileArchive_ext in $(echo "$lstSupportedArchiveExts" | tr ',' ' '); do
  echo "${fileArchive}" | egrep -q "\.${fileArchive_ext}$" && break
 done
 if [ $? -eq 0 ]; then
  dir2Unpack_fileArchive="${fileArchive%%.$fileArchive_ext}"
  [ -d "$dir2Unpack_fileArchive" ] || mkdir -p "$dir2Unpack_fileArchive"
  echo -n "Unpacking $fileArchive... "
  cmd2exec="upck_${fileArchive_ext//./_/}"
  cmd2exec="`echo \"${!cmd2exec}\" | sed \"s&%f&${fileArchive}&g; s&%d&${dir2Unpack_fileArchive}&g\"`"
  { eval "$cmd2exec" && echo 'OK'; } || echo 'FAILURE!'
 else
  echo "Sorry, file $fileArchive is not an archive or unpacking of this archive type is unsupported by me"
  continue
 fi 
done