Thank you very much achow101. 
O.k. the command is only sending a signal if I understand this correctly. So, how to support it on August 1st?
You will have to run a modified version of Bitcoin Core which enforces the BIP 148 rules. Those binaries can be found here: https://github.com/UASF/bitcoin/releases/tag/v0.14.1-uasfsegwit0.3O.k. the command is only sending a signal if I understand this correctly. So, how to support it on August 1st?