#!/bin/sh
# Time-stamp: <2024-01-05 16:22:12 oj14ozun>

set -e

USER1=oj14ozun
USER2=oc45ujef

DIR=$(mktemp -d)

getlinks() {
    OUT="$DIR/$1"
    curl -s "https://wwwcip.cs.fau.de/~$1/links.html" | hxwls | sort | uniq > "$OUT"
    echo "$OUT"
}

comm -1 -2 "$(getlinks $USER1)" "$(getlinks $USER2)"

rm -fr "$DIR"