text - How to grep specific lines from nmap -O output? -

i got many files named 192.168.203.txt output of

sudo nmap -o --top-ports 192.168.203.* >>192.168.203.txt  

the output looks below:

  nmap scan report 192.168.203.29 host (0.00067s latency). port     state    service 21/tcp   closed   ftp 22/tcp   closed   ssh 23/tcp   closed   telnet 25/tcp   closed   smtp 80/tcp   open     http 110/tcp  closed   pop3 139/tcp  filtered netbios-ssn 443/tcp  closed   https 445/tcp  filtered microsoft-ds 3389/tcp filtered ms-wbt-server device type: general purpose running: microsoft windows 2008|7 os cpe: cpe:/o:microsoft:windows_server_2008::sp2 cpe:/o:microsoft:windows_7 os details: microsoft windows server 2008 sp2, microsoft windows 7 or windows server 2008 sp1 network distance: 6 hops  

i want grep ip 192.168.203.29 http or ssh or other ports open sepetately. maybe pipe result ip file named http_open_ip.txt.

i have tried grep ftp commands:

cat *.txt|grep -b 3 "ftp"|grep -b3 "open"|grep "192.168."|awk '{print $5}'|sort -t . -k 3,3n -k  4,4n> ftp_open_ip.txt 

thus, got file ftp_open_ip.txt. found command not work other keywords ssh stmp. should ?

i not clear want. perhaps, want in files , ip have http port open in 1 file, ssh port open in file. same ip may present in multiple files. assuming that, below awk solution

awk 'begin{http_open="http_open";ssh_open="ssh_open";ftp_open="ftp_open"}   /nmap scan report for/{ip=$5}   /ftp/ && /open/{print "ftp open " ip >> ftp_open}   /ssh/ && /open/{print "ssh open " ip >> ssh_open }   /http/ && /open/{print "http open " ip >> http_open}   ' <filename> 

it assumes file containing data in same order shown in example. nmap scan report for line has ip in 5th field. after that, rest simple. if ftp, ssh, http etc found along open status, redirect output in corresponding file.