locale-gen — generate localisation files from templates

       As  compiled  locales  are large, only templates are distributed in the default locales package, and only
       the desired locales are compiled on the target system.

       After selecting  the  locales  into  /etc/locale.gen  (via  dpkg  package  configuration,  for  example),
       locale-gen is run to compile them via localedef(1).

/etc/locale.gen  Whitespace-separated  newline-delimited  localecharset list of locales to build with #
                        start-of-line comments.
       /var/lib/locales/supported.d  A  directory  containing  locale.gen  snippets  provided  by  language-pack
                                     packages.   Do not edit these manually, they will be overwritten on package
                                     upgrades.

       locale-gen — generate localisation files from templates

--keep-existing  Do not remove /usr/lib/locale/locale-archive, only compiling new locales.

locale(1), localedef(1), locale.gen(5)

       /usr/share/i18n/SUPPORTED (/usr/local/share/i18n/SUPPORTED) —  list  of  all  supported  locales  on  the
       current system.

       The locales-all package, which contains all supported locales in compiled form.

Debian                                             May 5, 2022                                     LOCALE-GEN(8)

locale-gen [--keep-existing]