OSX Terminal Fix - perl: warning: Setting locale failed.

gistfile1.txt

When running certain commands like ssh or git within Terminal on OSX you may get notices like the one below, which can be annoying.
      
      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").
      
The fix is simple:

Adding the following lines to ~/.bash_profile on my your local machine, the warning should go away:

export LC_CTYPE=en_US.UTF-8
export LC_ALL=en_US.UTF-8

Hope this helps someone rid themselves of annoyances.

Worked for me too thanks !

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

So sad, because I don´t understand what is happening and even if I need to do something inside system preferences, I read something about it but for other versions like Lion

On macOS Catalina (10.15.4) using iTerm2, I made this work by export LC_ALL=en_US.UTF-8 only.

If I also set LANG=en_US.UTF-8, those messages start coming back.

This appears to work for both zsh and bash.

On Linux I might have run locale-gen to fill the missing locale files out, but that command doesn't seem to be available. Alternatively, export LC_ALL=C works, but because unicode symbols appear throughout my terminal use (my prompt, filenames, brew command-line output), this is a big compromise.

@sshine thanks a lot! (on 10.15.5 works too)

Thanks, It was exactly what I was looking for. solved the issue

Thank you so much

It is not working for me.

My quick way to disable that message:
Open Terminal -> Preferences -> Advanced tab -> uncheck to Set locale environment variables on startup

export LC_ALL=en_US.UTF-8

Thanks @khoimm92

My quick way to disable that message: Open Terminal -> Preferences -> Advanced tab -> uncheck to Set locale environment variables on startup

Nice tip. Thanks.

On macOS Catalina (10.15.4) using iTerm2, I made this work by export LC_ALL=en_US.UTF-8 only.

Thanks @sshine

On macOS Sonoma (14.1) using iTerm2 , zsh , I made this work by appending export LC_ALL=en_US.UTF-8 only in ~/.zshrc .

On iTerm:
Settings... > Profiles > Terminal > Uncheck Set locale variables automatically

you rock , this made my day