Debug program_name with corefile core.
Debug program_name with process ID process_id.
Debug process ID process_id; dbx finds the program via /proc.
Debug using corefile core; see also debug Command.
Run program_name with arguments arguments; if abnormal termination, start debugging program_name, else just exit.
program_name is the name of the program to be debugged.
process_id is the process ID of a running process.
arguments are the arguments to be passed to the program.
options are the options listed in Options.