function cpfile() {
    sourcefile="$1"
    destinationDir="$2"
    filename=$( basename "$sourcefile" )
    extension="${filename##*.}"
    filename="${filename%.*}"
    alreadyExist=0
    if [ -f "$destinationDir/$filename.$extension" ]   # file exist in destination
        then
                filename=$( printf "%s_new.%s" "$filename" "$extension" )
            alreadyExist=1
        else
            filename="$filename.$extension"
    fi
    if [[ "$3" == "--move" ]]
        then  mv "$sourcefile"  "$destinationDir/$filename"
        else
            if (( "$alreadyExist" == 0 )) ; then
                cp "$sourcefile"  "$destinationDir/$filename"
            fi
    fi
}