Set $GOPATH on Mac OSX : bash_profile

gistfile1.txt

# Edit ~/.bash_profile 

export GOPATH=/Users/$USER/go
export PATH=$GOPATH/bin:$PATH

# Reload profile : source ~/.bash_profile

ok, but is that to place into a file or must i run that all the time ?
Sometime s the UNIC guys do not start at the basics.

Adding this on your bash_profile will solve the problem. It's not necessary to do it by yourself.

Since:
bash_profile is a configuration file for bash shell. When bash is invoked as an interactive login shell it first reads and executes commands from ~/.bash_profile. E.g. This file can be used to export variables in shell. You can put your variables in ~/.bashrc also apart from bash profile

If in your case still not work, verify if you're really using bash or other shells scripts.
You can do this typing the command:
ps -p $$
This will provide the actual shell name.
In my case is:
PID TTY TIME CMD
790 ttys000 0:00.59 -zsh

So I'm using zsh as shell for instance I need to add any related configuration to my ~/.zshrc file instead.

Change this

export GOPATH=/Users/username/go

into this

export GOPATH=/Users/$USER/go

@dkatzsos Good catch! Gist updated.

or you could do $HOME/go and then it would work if you are sharing your rc file between multiple systems.