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dotfiles/common/bin/check-port

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#!/usr/bin/env bash
if [[ $1 = t ]] || [[ $1 = tcp ]] || \
[[ $1 = T ]] || [[ $1 = TCP ]]; then
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echo "TCP is the default. You don't need to specify it." >&2
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exit 1
fi
if [[ $1 = u ]] || [[ $1 = udp ]] || \
[[ $1 = U ]] || [[ $1 = UDP ]]; then
shift
set -x
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sudo nmap -sU "$1" -p "$2"
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else
set -x
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nmap "$1" -p "$2"
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fi