Install libevent-execflow-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libevent-execflow-perl
Description:
High level API for event-based execution flow control
Event::ExecFlow provides a ligh level API for defining complex flow controls with asynchronous execution of external programs.
Homepage: http://www.exit1.org/Event-ExecFlow/
Version: 0.64-0ubuntu3
Section: universe/perl