通過python腳本來修改apache的配置文件：
該腳本可以解析apache配置文件，找到VirtualHost部分，替換DocumentRoot。
#!/usr/bin/python from cStringIO import StringIO import re vhost_start = re.compile(r'<VirtualHost\s+(.*?)>') vhost_end = re.compile(r'</VirtualHost>') docroot_re = re.compile(r'(DocumentRoot\s+)(\S+)') def replace_docroot(conf_string, vhost, new_docroot): '''yield new lines of an httpd.conf file where docroot lines matching the specified vhost are replaced with the new_docroot ''' conf_file = StringIO(conf_string) in_vhost = False curr_vhost = None for line in conf_file: vhost_start_match = vhost_start.search(line) if vhost_start_match: curr_vhost = vhost_start_match.groups()[0] in_vhost = True if in_vhost and (curr_vhost == vhost): docroot_match = docroot_re.search(line) if docroot_match: sub_line = docroot_re.sub(r'\1%s' % new_docroot, line) line = sub_line vhost_end_match = vhost_end.search(line) if vhost_end_match: in_vhost = False yield line if __name__ == '__main__': import sys conf_file = sys.argv[1] vhost = sys.argv[2] docroot = sys.argv[3] conf_string = open(conf_file).read() for line in replace_docroot(conf_string, vhost, docroot): print line,