Leicht inspiriert duch:

• https://git.zx2c4.com/wireguard-tools/tree/src/wg-quick/linux.bash
• https://www.linuxjournal.com/content/bash-arrays

#!/usr/bin/env bash
 
msg() {
  echo "[*] $*" >&2
}
 
err() {
  echo "[!] $*" >&2
}
 
die() {
	echo "[X] $*" >&2
	exit 1
}
 
cmd() {
	echo "[#] $*" >&2
	"$@"
}