[macos] In OS X Lion, LANG is not set to UTF-8, how to fix it?

I try to setup postgress in OS X Lion, and find that is not correctly setup the LOCALE environment var.

This is what is set:

LANG=
LC_COLLATE="C"
LC_CTYPE="C"
LC_MESSAGES="C"
LC_MONETARY="C"
LC_NUMERIC="C"
LC_TIME="C"
LC_ALL=

I expect something with UTF-8. This is a clean OS X Lion setup, with spanish language. I don't move anything.

I don't know how setup it to UTF-8.

In the terminal settings, is check UTF-8 and set LOCALE in open, despite that don't work.

if you have zsh installed you can also update ~/.zprofile with

if [[ -z "$LC_ALL" ]]; then
  export LC_ALL='en_US.UTF-8'
fi

and check the output using the locale cmd as show above

? locale                                                                                                                                           
LANG="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_CTYPE="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_ALL="en_US.UTF-8"

I had this issue with MacOS High Sierria.

You can set up locale as well as language to UTF-8 format using below command :

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

Now in order to check whether locale environment is updated use below command :

Locale

I recently had the same issue on OS X Sierra with bash shell, and thanks to answers above I only had to edit the file

~/.bash_profile 

and append those lines

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

This is a headbreaker for a long time. I see now it's OSX.. i change it system-wide and it works perfect

When i add this the LANG in Centos6 and Fedora is also my preferred LANG. You can also "uncheck" export or set locale in terminal settings (OSX) /etc/profile

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