cd /var/www/html/

ls -a
.  ..  .git  index.nginx-debian.html

ls -A
.git  index.nginx-debian.html

ls -lA
total 8
drwxr-xr-x 7 root root 4096 Apr 24 01:58 .git
-rw-r--r-- 1 root root  430 Apr 20 08:53 index.nginx-debian.html

.git/

git clone <url>

git init