Hello, thank you so much for your reply.

As you have mentioned, there will be 2 Ip addresses per line. One of it is my source IP, the other is the IP addresses I want to extract.

These are the fields of the actual line: 

date time s-ip cs-method cs-uri-stem cs-uri-query s-port cs-username c
+-ip cs(User-Agent) sc-status sc-substatus sc-win32-status time-taken

[download]

Sample logs 

2017-12-08 07:01:39 <s-ip> GET /course-detail.aspx id=66&catColor=0 44
+3 - <c-ip> curl/7.19.7+(x86_64-redhat-linux-gnu)+libcurl/7.19.7+NSS/3
+.27.1+zlib/1.2.3+libidn/1.18+libssh2/1.4.2 200 0 0 530
2017-12-08 07:01:39 <s-ip> GET /course-listing.aspx - 443 - <c-ip> cur
+l/7.19.7+(x86_64-redhat-linux-gnu)+libcurl/7.19.7+NSS/3.27.1+zlib/1.2
+.3+libidn/1.18+libssh2/1.4.2 200 0 0 140
2017-12-08 07:01:39 <s-ip> GET /course-detail.aspx id=24&catColor=0 44
+3 - <c-ip> curl/7.19.7+(x86_64-redhat-linux-gnu)+libcurl/7.19.7+NSS/3
+.27.1+zlib/1.2.3+libidn/1.18+libssh2/1.4.2 200 0 0 93
2017-12-08 07:01:40 <s-ip> GET /logistics.aspx - 443 - <c-ip> curl/7.1
+9.7+(x86_64-redhat-linux-gnu)+libcurl/7.19.7+NSS/3.27.1+zlib/1.2.3+li
+bidn/1.18+libssh2/1.4.2 200 0 0 46
2017-12-08 07:01:40 <s-ip> GET /course-detail.aspx id=23&catColor=0 44
+3 - <c-ip> curl/7.19.7+(x86_64-redhat-linux-gnu)+libcurl/7.19.7+NSS/3
+.27.1+zlib/1.2.3+libidn/1.18+libssh2/1.4.2 200 0 0 140

[download]

c-ip being the IP address I want to extract

In reply to Re^2: How to grep matching IP address from a log file? by dotowwxo
in thread How to grep matching IP address from a log file? by dotowwxo

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