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Settting up PATH Environment Variables


HOW TO EDIT PATH VARIABLES IN MAC - 

1. Open terminal and enter the following command  - 
touch ~/.bash_profile; open ~/.bash_profile
This will open the bash_profile in text editor 

2. Add the following line to the end of the file adding whatever additional directory you want in your path:
export PATH="$HOME/.rbenv/bin:$PATH"

3. Save the .bash_profile file and Quit (Command + Q) Text Edit.

4. Force the .bash_profile to execute. This loads the values immediately without having to reboot. In your Terminal window, run the following command.
source ~/.bash_profile

Voila ! You are done. 
Check your Path vars by typing echo$PATH in the editor.   

Multiple path environment variable setup with bash - 

export PATH="A"
export PATH="$PATH:B"
export PATH="$PATH:C"
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