python - Output manipulation from subprocess -

I want to manipulate the output with a subprocess call and only print specific details. I was originally going down from the PIPE route and sent the output to the second subprocess of grep but it looks very limited , Which means that I could only print some lines using the -A or -b grep arguments (some of which I Did not want). So now I'm taking the stdout.readline route. My question is, is there a better way of what I am trying to do? Does regular expression and again match the best option?

Pipes in any sub-publication:

  
  
 
 Code> def nmap_ips (ip_list) ): In ip_list for ip: cmd1 = subprocess.Popen (["nmap", "-sC", "--open", "-Pn", "-p80,443", ip], stderr = subprocess.STDOUT , Stdout = subprocess.PIPE) cmd2 = subprocess.Popen (["grep", "title", "-a", "1"], stdin = cmd1.stdout) cmd1.stdout.close () Output = cmd2.communicate () [0]   
  stdout Reading lines:  # IM is not actually receiving output from this function, I'm guessing IP's IPILIP: P = Subprances for Popen (IP) (IP_list): regs = ["title", "common name"] combined = "|". ["Nmap", "-sc", "- Open", "-PN", "-P 80,443", IP], stadder = subprances STDUUT, stadout = subpros. PPE) in the line (P.Stdout.readline, b ''): ml = re.match (combined, line) if ml: print ml.group ()   
  The example of the data I am trying to manipulate   
  2014-10-10 at 23:47 p.m. NMAP 6.40 (http://nmap.org ) To start BTHMemHub.home (192.168.1.254) the NMAP scan report is hosted (0.0054 latency). Port State Service 80 / TCP Open http | Http-title: Home Hub Manager - Please reset your password. _Requested resource was http: //BTHomeHub.home/html/home/a_firstlogin_configuration.html 443 / tcp open https | Ssl-cert: Subject: Common Name = bthomehub.home / Countryname = UK | Not valid before: 2011-01-15T16: 52: 23 + 00: 00 | _10 Not valid: 2024-01-17T16: 52: 23 + 00: 00. _ssl- Date: 2014-10-10 T 22: 47: 18+ 00:00; Your view is OK  grep 'title \ <14>  
 
 and  double search (b'title | commonName', line) both work .  
 Note:  Re.match ()  Match starts at the beginning of its input string  re.search ()  finds matches anywhere in the string .  
 If you want to save these lines in one variable, then the  grep  process is unnecessary. This is only enough to start  nmap . Popen, PIPE, STDOUT def nmap_something (ip_list): match = re.compile (b "title | commonName") from subprocess import .search p = popen (["nmap", "-" SC "," --open "," -Pn "," -p80,443 "] + ip_list, stdout = PIPE, stderr = STDOUT, bufsize = 1) Results = List (filter (match, P. standout)) .stdout.close () p.wait () Return Results   
 I do not have to make sure about the exact syntax for the same  nmap  Ips, but it supports it i.e. you start multiple processes to scan multiple apps Is not required.  
 If you do not need the SSL certificate web server then you need  nmap , you can use a pure Python solution such as