A weird issue encountered while trying to run laravel’s php artisan commands while logged in using SSH. Following was the error.

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
    LANGUAGE = (unset),
    LC_ALL = (unset),
    LANG = "en_US.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

After bit of research it turned out that it was not related to laravel at all. The issue was that i was trying to connect to an older host/OS (centos – cPanel) from a newer machine (macOS 10.15.1 in my case).

Adding following in .bash_profile in macOS solved it for me.

# Setting for the new UTF-8 terminal support in Lion
export LC_CTYPE=en_US.UTF-8
export LC_ALL=en_US.UTF-8

For more details check this