Rainier Automatic Raster Resizer

rarr.sh

#!/bin/bash
#
# Written by Kenny Stier for Trenta.io
#
#    Rainier Automatic Raster Resizer (RARR)
#    Copyright (C) 2017 Trenta.io
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# To use, create app icons at 1024x1024 in the PNG format and
# place them in the apps/1024 directory. This script will
# use ImageMagick to resize the images and put them in their correct
# directories.
#
# Run this script in the apps/1024

# 512
mkdir -p ../512
rm -rf ../512/*
for file in ./*
do
  convert "$file" -resize 512 "../512/$file"
done

# 256
mkdir -p ../256
rm -rf ../256/*
for file in ./*
do
  convert "$file" -resize 256 "../256/$file"
done

# 128
mkdir -p ../128
rm -rf ../128/*
for file in ./*
do
  convert "$file" -resize 128 "../128/$file"
done