#!/bin/bash

# Navigate to the img directory
cd img || exit

# Loop through each folder in the img directory
for folder in IMG_*; do
    # Check if the folder exists and is a directory
    if [ -d "$folder" ]; then
        # Navigate into the folder
        cd "$folder" || continue

        for file in *; do
            if [[ -f "$file" ]] && ! [[ "$file" =~ ^IMG_[0-9]{4}\.jpeg$ ]]; then
                rm "$file"
            fi
        done

        # Navigate back to the img directory
        cd ..
    fi
done