linux查找符号文件以及其映射

#! /usr/bin/env pythonimport osimport reresult = os.popen('ls -l /usr/bin')contents = result.readlines()for line in contents:    match = re.match(r'.*\s+(.*?)\s+->\s+(.*)', line.strip())    if match is not None:        print match.group(1),'->',match.group(2)