Rename files by date
A short Terminal loop renames every file in a folder to its date and time, like 2026-09-25_14.30.05.jpg. Two files from the same second get -2, -3 on the end, and running it twice changes nothing.
How
Go to the folder:
cd ~/Pictures/tripRename each file to the date it was last changed, never overwriting:
for f in *.*; do d=$(stat -f %Sm -t %Y-%m-%d_%H.%M.%S "$f"); e="${f##*.}"; n="$d.$e"; i=2; while [ -e "$n" ] && [ "$n" != "$f" ]; do n="$d-$i.$e"; i=$((i+1)); done; [ "$n" = "$f" ] || mv -n "$f" "$n"; doneThis uses the date the file was last changed. Photos copied straight off a camera or phone usually keep the shot time, but an edited or re-saved photo carries the edit time. Try it on a copy first.
Or just ask Titan
Rename the photos in this folder by the date they were taken.Do it with Titan
Titan is an AI that lives on your computer: tell it what you need and it does it while you watch — you press Return, nothing runs by itself. What is Titan?
Titan isn’t on this computer yet. Get Titan, then press the button again — the task will be waiting, typed in.