I am using the following code within a procedure in order to get an IP address of eth1 and use it as a gateway. Another thing I want is to use this variable (the IP address) outside, in the user scope.
global my_gw_ip_address
expect "# "
send "ifconfig eth1 | grep 'inet addr:' | cut -d: -f2 | awk '{print \$1}' > prod_ip_base.txt\r"
expect "# "
send " my_internal_gw=`cat prod_ip_base.txt`\r"
expect "# "
send " echo \$my_internal_gw\r"
expect "root#cnode-pp81:~ "
set checking_buffer_out $expect_out(buffer)
regexp {(?:\d+\.){3}\d+} $checking_buffer_out my_gw_ip_address
puts "internal gw: $my_gw_ip_address\n"
the output of the function is:
1. the line send " echo \$my_internal_gw\r" returns the correct IP address 192.168.138.50
2. the line puts "internal gw: $my_gw_ip_address\n" returns internal gw: 0.
can anyone please tell me what I do wrong? Why the variable $my_gw_ip_address is 0?
I solve the problem.
I should have added sleep 1 between the following commands.
change
set checking_buffer_out $expect_out(buffer)
regexp {(?:\d+\.){3}\d+} $checking_buffer_out my_gw_ip_address
to be:
set checking_buffer_out $expect_out(buffer)
sleep 1
regexp {(?:\d+\.){3}\d+} $checking_buffer_out my_gw_ip_address
Amigal
Related
I want to get the ip address given url.
I am currently using this
std::string i;
std::string pingStr = (std::string)"nslookup " +"www.yahoo.com" ;
i = system (pingStr.c_str());
but the output is
Server: 127.0.1.1
Address: 127.0.1.1#53
Non-authoritative answer:
www.yahoo.com canonical name = atsv2-fp-shed.wg1.b.yahoo.com.
Name: atsv2-fp-shed.wg1.b.yahoo.com
Address: 106.10.250.10
Q: Is there anyway I can only get the Ip address?
Use the getaddrinfo(3) function to look up IP addresses, IPv4 or IPv6, in usable form.
you can use the folowing command.
nslookup www.yahoo.com | grep Address: | sed -n 2p
grep Address gives you all lines having "address" word in them
sed gets the 2nd line of those 2
You can truncate the "Address" part of output in c++.
I have been using this little script for months now with success. Today I realize there is one output it cant seem to catch, screen comes up blank with a new prompt:
user#computer ~]$ myscan ipsFile 23
user#computer ~]$
Here is the code
#!/bin/bash
sudo nmap -v -Pn -p T:$2 -reason -i $1 | awk ' {
if (/syn-ack/) {
print "Yes"
c++
}
else if (/no-response|reset|host-unreach/) {
print "No"
c++
}
}
END { print c} '
If I run the nmap against one of the IPs then it returns
Starting Nmap 5.51 ( http://nmap.org ) at 2017-09-26 11:44 CDT
Initiating Parallel DNS resolution of 1 host. at 11:44
Completed Parallel DNS resolution of 1 host. at 11:44, 0.00s elapsed
Initiating Connect Scan at 11:44
Scanning 1.1.1.1 [1 port]
Completed Connect Scan at 11:44, 0.20s elapsed (1 total ports)
Nmap scan report for 1.1.1.1
Host is up, received user-set (0.20s latency).
PORT STATE SERVICE REASON
23/tcp filtered telnet host-unreach
Read data files from: /usr/share/nmap
Nmap done: 1 IP address (1 host up) scanned in 0.26 seconds
How can I catch the 'host-unreach' portion?
Let's try and debug this. Execute this:
nmap -v -Pn -p T:23 -reason -i ipsFile | awk '{print $0}/syn-ack/{print "Yes";c++}/no-response|reset|host-unreach/{print "No";c++}END {print c}' > out.txt
The only difference here is that the awk script prints $0 (i.e. the output of your nmap calls) to file out.txt. Try to grep your unreach value.
I tried this myself and found that instead of a host-unreach I got a net-unreach. Might be the same thing in your case.
Have you tried piping stderr to stdout like
#!/bin/bash
sudo nmap -v -Pn -p T:$2 -reason -i $1 2>&1 | awk ' {
if (/syn-ack/) {
print "Yes"
c++
}
else if (/no-response|reset|host-unreach/) {
print "No"
c++
}
}
END { print c} '
Friends , im trying to automate a routing using expect , basically its a debug plugin in a special equipment that i need to log some data , to access this debug plugin my company needs to give me a responsekey based on a challengekey , its a lot of hosts and i need to deliver this by friday , what i've done so far.
#!/usr/bin/expect -f
match_max 10000
set f [open "cimc.txt"]
set hosts [split [read $f] "\n"]
close $f
foreach host $hosts {
spawn ssh ucs-local\\marcos#10.2.8.2
expect "Password: "
send "Temp1234\r"
expect "# "
send "connect cimc $host\r"
expect "# "
send "load debug plugin\r"
expect "ResponseKey#>"
sleep 2
set buffer $expect_out(buffer)
set fid [open output.txt w]
puts $fid $buffer
close $fid
sleep 10
spawn ./find-chag.sh
sleep 2
set b [open "key.txt"]
set challenge [read $b]
close $b
spawn ./find-rep.sh $challenge
sleep 3
set c [open "rep.txt"]
set response [read $c]
close $c
puts Response-IS
send "\r"
expect "ResponseKey#> "
send "$response"
}
$ cat find-chag.sh
cat output.txt | awk 'match($0,"ChallengeKey"){print substr($0,RSTART+15,38)}' > key.txt
$ cat find-rep.sh
curl bla-blabla.com/CIMC-key/generate?key=$1 | grep ResponseAuth | awk 'match($0,"</td><td>"){print substr($0,RSTART+9,35)}' > rep.txt
i dont know how to work with regexp on expect so i put the buffer output to a file and used bash script , the problem is that after i run the scripts with spawn looks like my ssh session is lost , does anyone have any tips? should i use something else instead of spawn to invoke my scripts?
expect -re "my tcl compatible regular expression goes here"
Should allow you to use regular expressions.
Trying to obtain and print and further use just the local ip address on a pi:
import os
getipaddr = "ip addr show eth0 | grep inet"
ip = "%s" % (os.system(getipaddr))
print ip
returns:
inet 192.168.1.200/24 brd 192.168.1.255 scope global eth0
0
which correctly includes the local address, but:
import os
getipaddr = "ip addr show eth0 | grep inet"
ip = "%s" % (os.system(getipaddr))
print ip[9:22]
returns:
inet 192.168.1.200/24 brd 192.168.1.255 scope global eth0
not my expected subset of characters from character 10 to 21. Maybe ip is not really a string variable. Any help on how to fix greatly appreciated. Thanks!
[note: there are actually 4 spaces in front of inet in the print returns, just don't know how to show it in this forum]
If you look at this question, you will see that the return value of os.system is the return value of the call, not it's output. The output you are seeing on the screen is not coming from python but from the ip call. If you want to capture output use the subprocess module:
from subprocess import check_output
getipaddr = "ip addr show eth0 | grep inet"
ip = check_output(getipaddr, shell=True)
Now, the output will be in ip and you should get your desired results.
As a side note, '%s' % something is an anti-pattern. The clearer way to convert a string is to do str(something).
I have a string in a bash script that contains a line of a log entry such as this:
Oct 24 12:37:45 10.224.0.2/10.224.0.2 14671: Oct 24 2012 12:37:44.583 BST: %SEC_LOGIN-4-LOGIN_FAILED: Login failed [user: root] [Source: 10.224.0.58] [localport: 22] [Reason: Login Authentication Failed] at 12:37:44 BST Wed Oct 24 2012
To clarify; the first IP listed there "10.224.0.2" was the machine the submitted this log entry, of a failed login attempt. Someone tried to log in, and failed, from the machine at the 2nd IP address in the log entry, "10.224.0.58".
I wish to replace the first occurrence of the IP address "10.224.0.2" with the host name of that machine, as you can see presently is is "IPADDRESS/IPADDRESS" which is useless having the same info twice. So here, I would like to grep (or similar) out the first IP and then pass it to something like the host command to get the reverse host and replace it in the log output.
I would like to repeat this for the 2nd IP "10.224.0.58". I would like to find this IP and also replace it with the host name.
It's not just those two specific IP address though, any IP address. So I want to search for 4 integers between 1 and 3, separated by 3 full stops '.'
Is regex the way forward here, or is that over complicating the issue?
Many thanks.
Replace a fixed IP address with a host name:
$ cat log | sed -r 's/10\.224\.0\.2/example.com/g'
Replace all IP addresses with a host name:
$ cat log | sed -r 's/[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/example.com/g'
If you want to call an external program, it's easy to do that using Perl (just replace host with your lookup tool):
$ cat log | perl -pe 's/(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})/`host \1`/ge'
Hopefully this is enough to get you started.
There's variou ways to find th IP addresses, here's one. Just replace "printf '<<<%s>>>' " with "host" or whatever your command name is in this GNU awk script:
$ cat tst.awk
{
subIp = gensub(/\/.*$/,"","",$4)
srcIp = gensub(/.*\[Source: ([^]]+)\].*/,"\\1","")
"printf '<<<%s>>>' " subIp | getline subName
"printf '<<<%s>>>' " srcIp | getline srcName
gsub(subIp,subName)
gsub(srcIp,srcName)
print
}
$
$ gawk -f tst.awk file
Oct 24 12:37:45 <<<10.224.0.2>>>/<<<10.224.0.2>>> 14671: Oct 24 2012 12:37:44.583 BST: %SEC_LOGIN-4-LOGIN_FAILED: Login failed [user: root] [Source: <<<10.224.0.58>>>] [localport: 22] [Reason: Login Authentication Failed] at 12:37:44 BST Wed Oct 24 2012
googled this one line command together. but was unable to pass the founded ip address to the ssh command:
sed -n 's/\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}/\nip&\n/gp' test | grep ip | sed 's/ip//' | sort | uniq
the "test" is the file the sed command is searching for for the pattern