For some reasons (tests or others), you could be happened to use pushing from CLI.
To do this, use np script (available at root directory) this way:
./np push <adapter> <token-or-registration-id> "Your message" --option1=value1 --option2=value2 ...
Each options matches with adapters required and optional ones.
Here is a concrete APNS adapter example:
./np push apns <token> "It's an example!" --certificate=/path/to/the/certificate.pem
Here is a concrete GCM adapter example:
./np push gcm <token> "It's an example!" --api-key=XXXXXXXXXX