root@Kali:/opt/java/jdk1.8.0# cd /opt/java
root@Kali:/opt/java# /etc/init.d/postgresql start && msfdb init
Starting postgresql (via systemctl): postgresql.service.
Database already started

The database appears to be already configured, skipping initialization

root@Kali:/opt/java# armitage

bash: armitage: команда не найдена