batch resize @3x iOS image assets to @2x and @1x

resizer3x

#!/bin/bash -e

# batch resize @3x iOS image assets to @2x and @1x
# copy this script to the folder where the @3x images files live and run "./resizer3x.sh" in terminal.
# this will generate [filename]@2x.[extension] and [filename].[extension] images in the same folder


# Ensure we're running in location of script.
cd "`dirname $0`"

for f in *; do
  if [[ $f == *@3x* ]];
    then
    convert "$f" -resize 66.6% "${f//@3x/@2x}"
    convert "$f" -resize 33.3% "${f//@3x/}"
  fi
done

echo "Complete"