Prepares iOS picture files for Android: images are renamed to conform with Android naming rules, and puts them into the correct drawable folder (-mdpi, -xhdpi, or -xxhdpi)

ios2android.sh

#!/bin/sh
mkdir drawable-mdpi
mkdir drawable-xhdpi
mkdir drawable-xxhdpi
shopt -s nocaseglob
for iosFile in *.{png,jpeg,gif}; do
	if [[ ! -f $iosFile ]]
		then
		continue
	fi
	if [[ $iosFile == *@2* ]]
	then
		androidFile=${iosFile/@2x/}
		dir=drawable-xhdpi
	elif [[ $iosFile == *@3* ]]
	then
		androidFile=${iosFile/@3x/}
		dir=drawable-xxhdpi
	else
		androidFile=$iosFile
		dir=drawable-mdpi
	fi
	androidFile=`echo $androidFile | tr [:upper:] [:lower:]`
	androidFile=${androidFile//-/_}
	
	# Euro sign handling seems strange, so do it a bit differently...
	#androidFile=${androidFile//[\€éèê]/eur}
	euro=`echo -e "\xE2\x82\xAC"`
	# Has to be replaced by exactly 3 characters, it seems...
	androidFile=`echo $androidFile | tr $euro eur`
	
	echo $iosFile	\>\>\> $dir/$androidFile 
	cp $iosFile $dir/$androidFile
done