LOL
cleanfolder.sh
#!/bin/bash
# file cleanfolder.sh
# Convert filenames to lowercase
# and replace characters recursively
#####################################
if [ -z $1 ];then echo Give target directory; exit 0;fi
find "$1" -depth -name '*' | while read file ; do
directory=$(dirname "$file")
oldfilename=$(basename "$file")
newfilename=$(echo "$oldfilename" | tr 'A-Z' 'a-z' | tr ' ' '_' | sed 's/_-_/-/g')
if [ "$oldfilename" != "$newfilename" ]; then
mv -i "$directory/$oldfilename" "$directory/$newfilename"
echo ""$directory/$oldfilename" ---> "$directory/$newfilename""
#echo "$directory"
#echo "$oldfilename"
#echo "$newfilename"
#echo
fi
done
exit 0