How to use drush config:set for translations?

Question

https://drushcommands.com/drush-9x/config/config:set/

For one language site the command is:

drush config:set system.site name "Drupal 8 English sitename"

But how to be, if the site is multilanguage, at example two languages? Example:

• English site name: "Drupal 8 English sitename"
• Italian site name: "Drupal 8 Italian sitename"

At example for site settings in web interface I can translate it in tab "Translate system information" http://take.ms/i9jUN. But how to set translated config value with drush? It is possible?

Answer 1

For getting the site name in Spanish for example it's

drush config:get language.es:system.site name

Unfortunately the following doesn't work and I wonder if this is a bug or what's missing.

drush -y config:set language.es:system.site name "Hello World"

This just gives me

Invalid character in Config object name language.es:system.site.

Will update answer later.

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Created an issue on drupal.org: drush config:set for other than default collections raises exception. Where I also provided a patch you may use if you are really in need right now.