nostr:npub1wg02ev7lfmnrwsjqu2tcm2qm4gw65aw0dyywfwvgafqnqyf02wmqhht0yf nostr:npub1jaxa22f4y8e0wrts9vvdnmfgs7558gqcyr5dkynhu6f7q2xgxmjq36nvuh du, awk, and grep exist