VER=1.18.1
Mojang offical minecraft server:
MANIFEST="https://launchermeta.mojang.com/mc/game/version_manifest_v2.json"
META_URL="$(curl -sL "$MANIFEST" | jq -r --arg v "$VER" '.versions[] | select(.id==$v) | .url')"
SERVER_URL="$(curl -sL "$META_URL" | jq -r '.downloads.server.url')"
curl -L -o "server-$VER.jar" "$SERVER_URL"
PaperMC minecraft server (recommended):