wget -qO

wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -

sudo su -
wget -qO - https://downloads.avax.network/avalanchego.gpg.key | tee 
/etc/apt/trusted.gpg.d/avalanchego.asc source /etc/os-release && echo "deb https://downloads.avax.network/apt $UBUNTU_CODENAME main" > /etc/apt/sources.list.d/avalanche.list
exit

See also

• wget, cURL, links, lynx, elinks, w3m, httpie, opensearch-cli curl, --no-check-certificate, wget --help