$ sudo apt-get update
$ sudo apt-get install razorqt-openssh-askpass 

razorqt-openssh-askpass is installed in your system.

Make ensure the razorqt-openssh-askpass package were installed using the commands given below,

$ sudo dpkg-query -l | grep razorqt-openssh-askpass *

You will get with razorqt-openssh-askpass package name, version, architecture and description in a table

razorqt-openssh-askpass package basic information: