Convert a hexdump Output to a Binary¶

Convert a file to ASCII-only (good for transmitting via a UART). hexdump can be found in a lot of places, making it more suitable than xxd for portability reasons. The -C can be omitted to reduce the transfer size (and thus time), without changing the regex below.

hexdump -Cv \
  < "${FILE}" \
  > "${FILE%.*}.hex"

Convert the hex dump back to a binary:

cat "${FILE}" \
  | sed -r \
    -e 's/[^ ]+ *//' \
    -e 's/ +\|.*\|$//' \
    -e 's/([0-9a-f]{2})([0-9a-f]{2})/\2\1/g' \
    -e 's/ //g' \
  | xxd -r -p \
  > "${FILE%.*}.bin"