How to Setting up Environment Variables in MacOS Sierra ?

Step 1

Open the Terminal and Write the Command

printenv

Geek@Nasrullahs-MacBook-Pro bin $ printenv

Step 2

Set the required path

Export PATH ={NEW PATH}:$PATH

export PATH=/Users/Geek/Anaconda-2/anaconda2/bin:$PATH

How to set username in Git ?

Open Terminal

Set Git User Name Globally

$ git config --global user.name "Nasr Ullah"

$ git config --global user.name
> Nasr Ullah

Set Git User Name for a Single Repository

$ git config user.name "Nasr Ullah"

$ git config user.name
> Nasr Ullah

How to associates the Editors with Git on Mac?

Using ATOM as Editor in Git

Step 1 - Download the ATOM 
Step 2 - Install the ATOM
Step 3-  Open Terminal & Use the following command 

$  git config --global core.editor "atom --wait"








Using Sublime as Editor in Git

Step 1 - Download the Sublime
Step 2 - Install the Sublime
Step 3-  Open Terminal & Use the following command 

$  git config --global core.editor "subl -n -w"

Using TextMate as Editor in Git

Step 1 - Download the TextMate
Step 2 - Install the TextMate
Step 3-  Open Terminal & Use the following command 

$  git config --global core.editor "mate -w"