Pass Commands
you may use terminal command pass to manager passwords.
$ sudo apt intall pass
$ gpg2 --full-gen-key
$ gpg2 --list-keys
# pub rsa2048/**your_key_id** 2018-04-28 [SC]
$ pass init **your_key_id**
$ pass insert test
# enter your password
$ pass #see your passwords list
$ pass show test