xxd Shell
A Shell snippet for xxd that answers requests for /pixel.gif with the empty GIF, decoded once at startup.
xxd Shell
# Strip "0x" and ", " to get a plain hex string, then reverse it into bytes.
echo '0x47, 0x49, 0x46, 0x38, 0x39, 0x61, 0x01, 0x00, 0x01, 0x00, 0x80, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x21, 0xf9, 0x04, 0x01, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x02, 0x02, 0x44, 0x01, 0x00, 0x3b' | sed 's/0x//g; s/, //g' | xxd -r -p > pixel.gif
We ran this snippet and compared the bytes it returned.