Is there a way to skip password/confirm at every transaction in parity? This would be really useful to work with dev chain and make multiple test quickly.
Yes. Run parity with
parity --chain dev --fast-unlock --unlock "0xdead,0xbeef,..." --password /path/to/password.txt
This will automatically unlock your account(s) with the provided passwords. Note, don't use this in production ;)
--fast-unlock Use drasticly faster unlocking mode. This setting causes raw secrets to be stored unprotected in memory, so use with care. --unlock=[ACCOUNTS] Unlock ACCOUNTS for the duration of the execution. ACCOUNTS is a comma-delimited list of addresses. Implies --no-ui. --password=[FILE]... Provide a file containing a password for unlocking an account. Leading and trailing whitespace is trimmed. (default: )