Folder Action to create TODAY folder

The script below, if used as Folder Action Script, will authomatically create a folder with the current date as a name and link to it named _Today in every folder for which the corrspondent action is activated. To use it put it in the ~/Library/Scripts/Folder Action Scripts/ folder

on opening folder this_folder
 set tf_path to POSIX path of this_folder
 set dt to tf_path & "/" & (do shell script "date +%Y-%m-%d")
 set TODAY to tf_path & "/_Today"
 do shell script "DT=\"" & dt & "\" ; TODAY=\"" & TODAY & "\"; if [ ! -d $DT ] ; then  mkdir $DT ; pwd > ~/aaa; else pwd > ~/aaa ;  fi; if [  -h $TODAY ] ; then rm $TODAY ; fi; ln -s $DT $TODAY;"
end opening folder