rawCmd Method (DBM Class) 
rawCmd is a method of the DBM Class (dbm Module). You use it to send a DBM command $cmd_string to the DBM server.
Syntax
$result = $session->rawCmd ($cmd_string);
End of the code.
More information: Database Manager CLI, Overview of All DBM Commands
Result
The result of the DBM command is returned.
Errors returned by the DBM server do not raise an exception. The return code starts with OK if the command was executed successfully; it starts with ERR if the command failed.
Example
You specify a valid DBM command.
$result = session->rawCmd ('db_state');
print "$result\n";
Output:
OK
State
OFFLINE
You specify an invalid DBM command.
$result = $session->rawCmd ('invalid command');
print "result\n";)
Output:
ERR
-24977,ERR_COMMAND: unknown command "invalid"