Fix photo exif camera shoot date time for all files within the current directory / published by https://github.com/dacr/code-examples-manager #16b49052-c908-4e54-ad2c-0c6d09703b66/c8d48a66e79c392d667c35f83b65976722a3ad4d

exif-current-directory-fix-date-and-autoinc.sh

## summary : Fix photo exif camera shoot date time for all files within the current directory
## keywords : bash, exiftool, timestamp,
## publish : gist
## authors : David Crosson
## license : Apache License Version 2.0 (https://www.apache.org/licenses/LICENSE-2.0.txt)
## id : 16b49052-c908-4e54-ad2c-0c6d09703b66
## created-on : 2025-08-06T07:07:56+02:00
## managed-by : https://github.com/dacr/code-examples-manager
## run-with : sh $file

# Validate and get base timestamp from first argument
if [ $# -eq 0 ]; then
    echo "Error: Base timestamp argument is required"
    echo "   such as '2024:01:01 20:10:30'"
    exit 1
fi
BASE_TS="$1"

# Enable case-insensitive globbing
shopt -s nocaseglob


COUNTER=0
for INPUT in *.{jpg,png,JPG,PNG,jpeg,JPEG}; do
  [ -e "$INPUT" ] || continue
  TS=$(exiftool -s -s -s -DateTimeOriginal "$INPUT")
  #if [[ "$TS" == "0000:00:00 00:00:00" || "$TS" == "" ]] ; then
    COUNTER=$((COUNTER + 1))
    SECS=$(date +%s --date="$BASE_TS")
    NEW_TIME=$(date '+%Y:%m:%d %H:%M:%S' --date="@$((SECS + COUNTER))" )
    echo "$INPUT: $TS -> $NEW_TIME"
    exiftool -overwrite_original "-DateTimeOriginal=$NEW_TIME" "$INPUT"
  #fi
done