I suppose you’re dredging up an old thread hoping for a shortcut but you have to at least get the items into your queue to render them. You don’t have to open each project file and set it up if you don’t want to, you can just import all of your projects into a fresh project. Drag one of the compositions you want to render. Set up the output module and location, and then find each comp you want and drag them all into the render queue. Then hit render
Otherwise you can follow Dave’s excellent suggestion from 2009.
Alternatively you can use aerender, but you still need to set up your comps in each project’s render queue. I have an explanation here for Mac OS X:
https://workbench.tv/tutorials/2016-06-03_UsingAerender/
You can then either open up multiple terminal windows and run the command in each window for each different project and they’ll all render at the same time, or you can do something like:
./render "Path/to/your/ProjectFile.aep"; ./render "Path/to/your/second/ProjectFile.aep"
Just put a semicolon between each instruction and they should run one after the other without stopping.
Joe Clay
Workbench.tv