Bash script to rename file names in a folder to remove spaces and special characters, used when importing photos into Piwigo

renamespace.sh

#!/bin/bash
# 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 "$oldfilename" | tr ' ' '_' | tr ',' '_' | tr '+' '_' | tr '&' '_' | tr '!' '_' | tr "'" "-" | tr "(" "-" | tr ")" "-" | tr "~" "-" | tr ']' '_' | tr '[' 'p')
        if [ "$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