root@VM-4-9-debian:~# rm Homebrew.sh ; wget https://gitee.com/cunkai/HomebrewCN/raw/master/Homebrew.sh ; b
ash Homebrew.sh

root@VM-4-9-debian:~# wget -qO - https://www.mongodb.org/static/pgp/server-4.2.asc | sudo apt
-key add -
E: gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this
 operation