Automatic Waifu2X Upscaler Script

#!/bin/bash

while :
do
    files=`\ls`
    for f in $files
    do
        exten=`echo $f | cut -d '.' -f 2`
        if [ $exten = "png" ] || [ $exten = "jpg" ]
        then
            #Get new name
            namew2x=`echo $f | cut -d '.' -f 1`
            namew2x+="W2X.png"
            #Upscale
            waifu2x-converter-cpp -i $f --noise-level 1 -o converted/$namew2x
            #Move original
            mv $f originals/.
        fi
    done
    sleep 30
done