nesdev.com

#!/bin/bash

mkdir nam
mkdir nam1
rm nam/a-*m
rm nam1/a-*m
convert -crop 8x8 $1 -depth 2 -colors 4 -compress none nam/a-%010d.xpm
convert -crop 8x8 $1 -depth 2 -colors 4 -compress none nam1/a-%010d.xpm

cd nam

# quita las cabeceras
mogrify -sample $2 *
sed -i $sed '/^s/d' *

LISTA=$(fdupes . | grep "^$" -B 1 | grep "^./" )

# quita los duplicados
fdupes -r1 . | sed -e 's/\(\w\) /\1|/g' -e 's/|$//' > files
while read line; do
        IFS='|' read -a arr <<< "$line"
        orig=${arr[0]}
        for ((i = 1; i < ${#arr[@]}; i++)); do
                file="${arr[$i]}"
                #sleep 1
                ln -sf "$orig" "$file"
        done
done < files
rm files


ls -F ../nam | grep -v @ | while read A; do
   cp ../nam1/$A ../nam/$A
done

# join
rm ../nam.png
N=0
$(echo "convert ( "
ls a-*m | while read A; do
    echo $A
    N=$((N+1))
    [ "$N" == "32" ] && echo " +append ) (" && N=0
done
echo ") -background none -append ../nam.png")