portage-ng --merge
>>> Emerging : portage://sci-mathematics/metamath-0.198:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-mathematics/metamath-0.198
│ └─ file ─┤ 457.61 Kb metamath-0.198.tar.gz
└─step 2─┤ install portage://sci-mathematics/metamath-0.198
└─step 3─┤ run portage://sci-mathematics/metamath-0.198
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
457.61 Kb to be downloaded.