Move photo files from current directory (e.g, Camera on Android phones) to newly created dated directories (e.g, 2023-07)

DCIM-reorg-by-date.sh

for f in *.jpg; do 
#macos: 
date=$(stat -f %Sm -t %Y-%m-%d "$f"); 
#unix:
#date=$(date +%F -r "$f");
y=${date:0:4}; 
m=${date:5:2};
new_dir="$y-$m";
mkdir -p "$new_dir"; 
mv "$f" "$new_dir"; 
done