command() - execute a command as if given by the object
int command( string str, object ob );
Execute 'str' for object 'ob', or this_object() if 'ob' is omitted.
Note that the usability of the second argument is determined by the
local administrator and will usually not be available, in which case an
error will result. In case of failure, 0 is returned, otherwise a
numeric value is returned, which is the LPC "evaluation cost" of the
command. Bigger numbers mean higher cost, but the whole scale is sub‐
jective and unreliable.