admin3@admin3-VirtualBox:~/Desktop$ perl NetSSHExpect.pl 
Connected to admin1
admin1   :0           2019-07-19 11:49 (:0)
admin1   pts/1        2019-07-19 12:41 (192.168.56.1)
admin1@admin1-VirtualBox:~$ prompt 'password' not found after 2 second at NetSSHExpect.pl line 36.
admin3@admin3-VirtualBox:~/Desktop$