debug, info, warn, error: Logging
These commands allow the experimenter to create logging information. Depending on the logging settings some of these messages will be displayed on the command line, or written to a log file. See 'nodehandler' for more information on that.
- …: One or more arguments
The arguments to these commands will be converted into strings and joined with NO additional spaces between them.
info("Starting") debug(i, " node(s) are up")