vi ip_address_list
csshX --login ubuntu --hosts ip_address_list --ssh_args " -i /Users/dickhfchan/cassandra/timingpower-kp.pem"
git clone https://github.com/dickhfchan/DSE_Training.git
git pull
vi ip_address_list
csshX --login ubuntu --hosts ip_address_list --ssh_args " -i /Users/dickhfchan/cassandra/timingpower-kp.pem"
git clone https://github.com/dickhfchan/DSE_Training.git
git pull