The xxd command is often missing from minimal or fresh Linux installations because it is typically bundled with the Vim text editor rather than being a standalone utility. How to Install xxd
If you installed xxd but the terminal still complains, try these steps: xxd command not found
ls -l $(which xxd)
chmod +x $(which xxd)
xxd is a small utility that creates a hex dump of a file or can convert a hex dump back to binary. If you see “xxd: command not found” it means your system doesn’t have it installed or it’s not in your PATH. Here’s how to resolve that across common platforms. The xxd command is often missing from minimal