Set file modification time based on file name (or EXIF data)

This snippet works for the Iphone image/movie files in format: YY-MM-DD HH24-MI-SS NNNN.ext

for f in *mov; do

  echo $f

  touch "$f" -t "20${f:0:2}${f:3:2}${f:6:2}${f:9:2}${f:12:2}.${f:15:2}"

done

Then, to overwrite with EXIF information from JPEG files:

exiv2 -T rename *.jpg

Useful snippet for some of the Iphone files/movies on my disk:

find . -type f -name \*720p.mov | while read LINE; do

  f=$(basename "$LINE")

  echo "$LINE"

  touch "$LINE" -t "20${f:0:2}${f:3:2}${f:6:2}${f:9:2}${f:12:2}.${f:15:2}"

done