sudo service postgresql status

daniyar@debian:~$ sudo service postgresql status
● postgresql.service - PostgreSQL RDBMS
   Loaded: loaded (/lib/systemd/system/postgresql.service; disabled)
   Active: active (exited) since Tue 2016-06-28 01:57:38 EDT; 2s ago
  Process: 2870 ExecStart=/bin/true (code=exited, status=0/SUCCESS)
 Main PID: 2870 (code=exited, status=0/SUCCESS)