Command line approach for creating builds

I am using DigiEL 5.7 for gateway product based on DigiEL 5.7.And i want to create builds (u-boot, Linux, rootfs and application using command line approach) from remotely using ssh (please suggest if any other approach feasible). So, want to know how can i use command line approach using make utility to make above builds.

create project via DigiESP GUI once, then you can build it using make/command line