If you have a Bitcoin (BTC) balance on Bittrex during the BCC UAHF time on August 1st, 5:20am (12:20pm UTC), you will be credited the equivalent amount of Bitcoin Cash (BCC) on a 1:1 basis. i.e. 1 BTC on Bittrex held during the on-exchange snapshot will get you 1 BCC. Full details below.
https://support.bittrex.com/hc/en-us/articles/115000808991-Statement-on-Bitcoin-Cash-BCC-
more wise would be to hold bitcoin in your own wallet and try to run the bitcoin cash wallet on your own pc.
prepare to have an extra 122 GB ready on your hdd
that's means if you have some BTC on Bittrex account you will receive BCC for free 1:1?