Xxd Command Not Found -

When writing scripts that rely on xxd, always check for its presence:

#!/bin/bash
if ! command -v xxd &> /dev/null; then
    echo "Error: xxd is not installed. Please install vim or xxd package."
    exit 1
fi
The command-line utility xxd was invoked on the system, resulting in a "command not found" error. This utility is a standard tool used for creating hex dumps from binary files and reversing them. Its absence prevents specific hexadecimal manipulation and debugging tasks.
Zsh caches command locations. After installation, run:
rehash

On Debian-based systems, the default Vim installation sometimes omits xxd to reduce dependencies. You need to install the xxd package explicitly. xxd command not found
sudo apt update
sudo apt install xxd

Alternatively, installing the full vim package will also bring xxd:
sudo apt install vim

To verify:
xxd --version

Expected output (example):
xxd V1.10 27oct98 by Juergen Weigert

sudo yum install vim-common

Arch Linux/Manjaro:

sudo pacman -S xxd

Alpine Linux:

sudo apk add xxd

Date: $(date +%Y-%m-%d) Status: Open

xxd --version | head -1

Successful output for echo "Hello" | xxd should resemble:

00000000: 4865 6c6c 6f0a                             Hello.