Convert a .mpo file to an animated gif

mpo2gif.sh

#!/bin/sh
# mpo2gif
# convert all .mpo files in a directory to a animation gif.
# Source: https://gist.github.com/878450
# this idea is from http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=16275
# this script requires exiftool and imagemagick.


for file in *.[Mm][Pp][Oo0]; do

  rjpg=/tmp/$$_r.jpg
  ljpg=/tmp/$$_l.jpg
  
  #Remove spaces from filename
  if [[ "$file" != "${file// /_}" ]]
  then
    echo Converting \'$file\' to \'${file// /_}\'
    mv "$file" "${file// /_}"
  fi
  
  file=${file// /_}
  echo $file
  
  #Change filename extension to .gif
  gif=${file%.*}.gif
  
  #Create gif
  exiftool -trailer:all= $file -o $rjpg
  exiftool $file -mpimage2 -b > $ljpg
  convert -loop 0 -delay 15 $ljpg -resize 360000@ -delay 15 $rjpg -resize 360000@ $gif #-delay 10 seems about right, 15 is a bit calmer 
  
  rm $rjpg $ljpg
  
  #Make directories
  if [[ ! -e originals ]]
  then
    mkdir originals
  fi
  
  if [[ ! -e gifs ]]
  then
    mkdir gifs
  fi
  
  #Move files
  mv "$file" originals/
  mv "$gif" gifs/

done