How to configure Git
Git is a version control system by Linus Torvalds, same person who wrote linux kernel.
In Archlinux, you can install git by:
$ sudo pacman -S git
In Debian and derived distributions:
$ sudo apt install -y git
You have to tell git about the author who committed changes so lets do it.
Name and Email
Tell git about your name and email:
$ git config --global user.name 'John Doe'
$ git config --global user.email 'firstname.lastname@example.org'
John Doe and with your name and
email@example.com with your name and email.
If you use gpg to sign the commits/tags, you have to tell git about your signing key.
$ git config --global user.signingkey 'firstname.lastname@example.org'
email@example.com with your email address you used when creating gpg keypair.