def _execShowCmd(self, showcmd):
result = None<EOL>lines = self._execCmd("<STR_LIT>", showcmd)<EOL>if lines and len(lines) >= <NUM_LIT:2> and lines[<NUM_LIT:0>] != '<STR_LIT>' and lines[<NUM_LIT:0>][<NUM_LIT:0>] != '<STR_LIT:->':<EOL><INDENT>result = {}<EOL>result['<STR_LIT>'] = lines[<NUM_LIT:0>].split('<STR_LIT:U+002C>')<EOL>items = []<EOL>for line in lines[<NUM_LIT:1>:]:<EOL><INDENT>if line == '<STR_LIT>':<EOL><INDENT>break<EOL><DEDENT>items.append(line.split('<STR_LIT:U+002C>'))<EOL><DEDENT>result['<STR_LIT>'] = items<EOL><DEDENT>return result<EOL>
Execute 'show' command and return result dictionary.

            @param cmd: Command string.
            @return: Result dictionary.