retrieve
status_t retrieve(int32 parameterID, void* data, size_t* ioSize);
return retrieve(parameterID, data, ioSize);
virtual status_t retrieve(
void retrieve(char *, char *);
retrieve(NULL, $4);
retrieve(_PATH_LS " -lgA", "");
retrieve(_PATH_LS " -lgA %s", $4);
retrieve(_PATH_LS " %s", dirname);