Which command is typically used to change language settings in Linux?

The command used to change language settings in Linux is localectl. This command is part of the systemd suite and is designed to manage localization settings for the system. It allows users to configure the system locale and keyboard layout settings in a unified manner.

When executed, localectl can display the current locale and keyboard layout settings, as well as allow users to change these settings to their desired preferences. For example, it can set the system locale to a specific language, which affects the language used in user interfaces and applications. This makes it a powerful tool for users who need their operating system to support multiple languages or to switch languages quickly.

The other options do not represent standard commands used in Linux for this purpose. "change-lang", "set-lang", and "lang-switch" do not exist as recognized commands in most Linux distributions, making localectl the most appropriate and accurate choice for changing language settings.