How to put jars from all subprojects into one directory?

Help/Discuss
1

I have a multi project project build as follows and when I do gradle clean build it creates jars under build/libs/ of each sub directory like below

root
   /projectA
       /build/libs/projectA.jar
   /projectB
       /build/libs/projectB.jar

Now I want to have all these subprojects jars (project A & B) in one place (say root/build/libs) so it would like this

root
   /build
       /libs
           /projectA.jar
           /projectB.jar
   /projectA
       /build/libs/projectA.jar
   /projectB
       /build/libs/projectB.jar

How do I do this ? Any code example? I am using gradle 4.0 if that helps

2

Depending on what you want to do with all of the libs in the root build directory, this is sort of the same question (with answer): distTar only includes subproject jars on second execution, following a clean