How can I use Bitcoin cash from the command line? In my understanding, even standard bitcoind and bitcoin-cli should work fine with it because the only blockchain was changed.

But may be there are any special tools/flags? Can you give some dead simple example, e.g. adding the new address to account and checking it's balance? With Bitcoin and bitcoind it can be done with 3 lines of code:

$ bitcoind -daemon
Bitcoin server starting
$ bitcoin-cli getnewaddress pavlovdog
1PB8NHbSG3CgvpzSMrvdeeAKaojZBXrwb # I've sent to this address 0.0001 BTC
$ bitcoin-cli getbalance pavlovdog
0.00010000

Thanks in advance!