https://mega.nz/linux/MEGAsync/Debian_9.0/amd64/megacmd-Debian_9.0_amd64.deb
mega-help
), можете делать бэкап.aptitude update
aptitude install libcrypto++6 libmediainfo0v5 libpcrecpp0v5 libssl1.1 libzen0v5
https://mega.nz/linux/MEGAsync/Debian_9.0/amd64/megacmd-Debian_9.0_amd64.deb