I am trying to install the language pack for magento 2.3.1, these are steps:
wget https://github.com/mageplaza/magento-2-italian-language-pack/raw/master/it_IT.csv
php bin/magento i18n:pack -m replace it_IT.csv it_IT
php bin/magento setup:static-content:deploy -f it_IT
php bin/magento cache:flush
I am in developer mode so I need -f to deploy. The i18n directory is not created, nothing happens.
I tried manually to insert the directories but it still doesn't work, language is not installed.