A shell script to create AppStore screen shots.

AppStoreScreenShotMaker.sh

#!/bin/sh

# settings ==========

# src file name
fileNamePrefix="ScreenShotFileNameFor5.5inch"

offsetFor3_5=20

# dest directory name
destDir="./dest/"
destDir4_7="4.7inch/"
destDir4="4inch/"
destDir3_5="3.5inch/"

# ====================

# create dest directory
mkdir $destDir
mkdir $destDir$destDir4_7
mkdir $destDir$destDir4
mkdir $destDir$destDir3_5

# loop for 4.7inch
echo "4.7inch"
for i in 1 2 3 4 5
do
  destFilePath=$destDir$destDir4_7$fileNamePrefix$i".png"
  echo $destFilePath
  convert -resize x1334 $fileNamePrefix$i".png" $destFilePath
done

# loop for 4inch
echo "4inch"
for i in 1 2 3 4 5
do
  destFilePath=$destDir$destDir4$fileNamePrefix$i".png"
  echo $destFilePath
  convert -resize 640x $fileNamePrefix$i".png" $destFilePath
  convert -crop 640x1136+0+0 $destFilePath $destFilePath
done

# loop for 3.5inch
echo "3.5inch"
for i in 1 2 3 4 5
do
  destFilePath=$destDir$destDir3_5$fileNamePrefix$i".png"
  echo $destFilePath
  convert -resize 640x $fileNamePrefix$i".png" $destFilePath
  convert -crop 640x960+0+$offsetFor3_5 $destFilePath $destFilePath
done

Many thanks.