Fix: warning: setlocale: LC_CTYPE: cannot change locale (UTF-8): No such file or directory

On a freshly installed CentOS 7 machine, I got the following notice when I SSH’d into the server.

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

The fix is pretty straight-forward. On the server (not your client), edit the file /etc/environment and add the following lines.

(You’ll need root privileges to do this)

$ cat /etc/environment

LANG=en_US.utf-8

LC_ALL=en_US.utf-8

Log out & back in and you should notice the warning message is gone.