#!/bin/bash

# Default value if no argument is provided
LENGTH=48

# If the user provides one numeric argument, use it instead
if [[ $# -eq 1 && $1 =~ ^[0-9]+$ ]]; then
  LENGTH=$1
elif [[ $# -gt 1 ]]; then
  echo "Usage: $0 [length]"
  exit 1
fi

# Run the command
openssl rand -hex "$LENGTH"