Display the output in plain mode, without any gaps between the columns

Create a hexadecimal representation (hexdump) from a binary file, or vice-versa.
More information: <https://manned.org/xxd>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

xxd -p {{input_file}}

click the source code to copy install xxd on any operating system with command-not-found.com