我在Linux系统(Ubuntu(上运行Perl时遇到问题:
user@Box:~$ perl -e exit
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = "en_US:en",
LC_ALL = (unset),
LC_CTYPE = "UTF-8",
LANG = "en_DK.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to a fallback locale ("en_DK.UTF-8").
谷歌搜索显示,这通常与引用缺失语言环境的环境变量有关,但是所有语言环境似乎都在那里:
user@Box:~$ locale -a
locale: Cannot set LC_CTYPE to default locale: No such file or directory
C
en_DK.utf8
en_GB.utf8
en_US
en_US.iso88591
en_US.utf8
POSIX
我已经尝试安装所有en,但这似乎不会影响任何事情。
在写问题时找到了答案:
罪魁祸首是 LC_CTYPE=UTF-8
,这显然在 macOS 中完全有效(Perl 会在那里接受它(,但在 Linux 上则不然。为了避免这种情况,可以按如下方式覆盖LC_CTYPE
:
root@Box:~# update-locale LC_CTYPE=en_US.UTF-8
注销并重新登录后,Perl 将不再抱怨。
user@Box:~# perl -e 'print "Hack the Planet!n"'
Hack the Planet!