Installing server features on multiple servers using a text file and psexec. You can find psexec here.

servers.txt:

server1.contoso.com
server2.contoso.com
server3.contoso.com

Run the follwing psexec command:

Psexec.exe @Servers.txt ServerManagerCMD.exe -install FS-DFS

For a list of features that can be installed this way run:

ServerManagerCMD.exe -query