Rename my Spypoint pictures

rename.sh

#!/bin/bash

# Check if a directory has been provided as an argument
if [ "$#" -ne 1 ]; then
    echo "Usage: $0 path_to_directory"
    exit 1
fi

directory="$1"

# Check if the directory exists
if [ ! -d "$directory" ]; then
    echo "The directory '$directory' does not exist."
    exit 1
fi

# Loop through all files in the directory
for file in "$directory"/*; do
    # Check if it is a file
    if [ -f "$file" ]; then
        # Get the last modification date and time of the file (format: YYYY-MM-DD_HH-MM)
        mod_time=$(stat -c %Y "$file")
        formatted_time=$(date -d @"$mod_time" +"%Y-%m-%d_%H-%M-%S")

        # Rename the file
        filename=$(basename "$file")
        new_name="$directory/${formatted_time}_$filename"
        mv "$file" "$new_name"

        echo "The file '$filename' has been renamed to '${formatted_time}_$filename'."
    fi
done