#!/usr/bin/env bash
set -eu
trap exit SIGINT SIGTERM
# Close any previous instances
script_name="${BASH_SOURCE[0]}"
for pid in $(pidof -x "$script_name"); do
if [ "$pid" != $$ ]; then
kill -15 "$pid" 2> /dev/null
wait "$pid" 2> /dev/null
fi
done
# Serve the page
HTML="\
$2
"
LENGTH="${#HTML}"
RESPONSE="HTTP/1.1 200 OK\nContent-Length: ${LENGTH}\nConnection: close\n\n$HTML\n\n"
echo -en "$RESPONSE" | nc -k -N -lp 80 &
echo -en "$RESPONSE" | nc -k -N -lp "${1:-5000}"