SHELL

git config

git config --global user.name "John Doe"
git config --global user.email johndoe@example.com

where is global config file for git

git config --global --edit 
# It will open git config file and you can make necessary changes

global configuration git

git config --global user.name "pseudo"
git config --global user.email "email@test.com"
git config --global user.password "password"

git global config location

To track down the file holding each config option set on your own system:
  git config --list --show-origin

Generally, there are three configs:
  * git config puts stuff in <repo root>/.git/config by default
  * git config --global puts stuff in <user home>/.gitconfig
    * On Linux/macOS, this means ~/.gitconfig
    * On Windows, this means %HOMEDRIVE%%HOMEPATH%.gitconfig
      (not %USERPROFILE%.gitconfig; these are not always the same)
  * git config --system puts stuff in a global config file shared by all users
    * On Linux, it's /etc/gitconfig
    * On macOS, it's /Applications/Xcode.app/Contents/Developer/usr/etc/gitconfig
    * On Windows, it's <wherever you installed Git>/etc/gitconfig

git config command

git config

git config

# Get system value
$ git config --system --get https.proxy
$ git config --system --get http.proxy

# Get global value
$ git config --global --get https.proxy
$ git config --global --get http.proxy

# Check configuration for your user
$ cat $HOME/.gitconfig

# Unset system value
$ git config --system --unset https.proxy
$ git config --system --unset http.proxy

# Unset global value
$ git config --global --unset https.proxy
$ git config --global --unset http.proxy