dotfiles/bin/check-port

#!/usr/bin/env bash

if [[ $1 = t ]] || [[ $1 = tcp ]] || \
	[[ $1 = T ]] || [[ $1 = TCP ]]; then
	echo "TCP is the default. You don't need to specify it." >&2
	exit 1
fi

if [[ $1 = u ]] || [[ $1 = udp ]] || \
	[[ $1 = U ]] || [[ $1 = UDP ]]; then
	shift
	set -x
	sudo nmap -sU "$1" -p "$2"
else
	set -x
	nmap "$1" -p "$2"
fi