in order to upgrade plesk from the command line
you need to access the plesk bin folder
/usr/local/psa/admin/sbin/
then
run
./autoinstaller --upgrade-installed-components --select-release-latest
in order to upgrade plesk from the command line
you need to access the plesk bin folder
/usr/local/psa/admin/sbin/
then
run
./autoinstaller --upgrade-installed-components --select-release-latest