\x89\x50\x4E\x47\x0D\x0A\x1A\x0A
 PNG

\x89\x50\x4E\x47\x0D\x0A\x1A\x0A
#MKD $FISH_FILENAME
if mkdir "/$FISH_FILENAME" 2>/dev/null; then
    echo "### 000"
else
    echo "### 500"
fi