Here is a website to watch the Bitcoin/Bitcoin Cash split in real time. If you are into that sort of thing.
https://www.btcforkmonitor.info
Hopefully, you got all your Bitcoin off the exchanges that are not supporting the new coin like Coinbase and GDAX. Kraken and Bittrex are giving 1:1 of the original Bitcoin and the new Bitcoin Cash.
Most people are saying they will sell the Bitcoin Cash coin. It will be interesting to see if it makes a come back after the sell-off.
Let me know if you plan to sell, hodl or stay out of it.