The error "xxd command not found" means the xxd utility is not installed on your system. xxd is part of Vim (used for hex dumps, binary-to-text conversion, etc.).
If you’ve ever tried to convert a file to hexadecimal format, create a binary dump, or patch a binary file directly from the command line, you’ve likely reached for the xxd command. But sometimes, when you type xxd and hit enter, the terminal responds with a frustrating error: xxd command not found
xxd V1.10 (Vim 9.0.1000)
If you want, I can: