解决服务器登录后：-bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory

把服务器从 Debian 12 升级到 13 后，现在每次 ssh 登录到服务器都会报一堆警告信息：

-bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_COLLATE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_COLLATE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_COLLATE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_COLLATE: cannot change locale (en_US.UTF-8): No such file or directory

解决方法，重新生成一下 locales 就行了：

$ localedef -i en_US -f UTF-8 en_US.UTF-8

另一种方法，Debian 下有专门的命令重新配置 locales：

$ dpkg-reconfigure locales

如果不嫌慢的话，也可以重新生成一遍 localisation 文件：

$ locale-gen

最后，推荐优先使用 localedef 命令，简单快速。