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Full Discussion: How to find ip addresses in logfiles?
Top Forums Shell Programming and Scripting How to find ip addresses in logfiles? Post 302506307 by type8code0 on Saturday 19th of March 2011 11:44:16 PM
Old 03-20-2011
How to find ip addresses in logfiles?
Hi guys,

I need to check a few log files as below to find out whether certain ip addresses is present on these log files.

type8code0: ls -alt
-rw-r--r-- 1 root other 796219588 Mar 20 02:25 logfile
drwxr-xr-x 2 root root 1536 Mar 20 02:00 .
-rw-r--r-- 1 root other 1854093343 Mar 20 02:00 logfile.hour02
-rw-r--r-- 1 root other 366729263 Mar 20 01:00 logfile.hour01
-rw-r--r-- 1 root other 9001399293 Mar 20 00:47 logfile.20.Z
-rw-r--r-- 1 root other 8267721901 Mar 19 00:45 logfile.19.Z
-rw-r--r-- 1 root other 7498682761 Mar 18 00:39 logfile.18.Z
-rw-r--r-- 1 root other 6196926607 Mar 17 00:31 logfile.17.Z
-rw-r--r-- 1 root other 4794493570 Mar 16 00:23 logfile.16.Z

I've saved the list of ip addresses in “iplist” file.
cat iplist
10.10.10.10
10.10.10.11
10.10.10.12
10.10.10.13
10.10.10.14

What is the best command to do this?
This is what I do now, but it takes sometime. Hopefully there is easy way to do this.

grep 10.10.10.10 logfile > output_logfile_10.10.10.10
grep 10.10.10.11 logfile > output_ logfile_10.10.10.11

and so on

zcat logfile.16.Z | grep 10.10.10.10 > output_logfile.16.Z_10.10.10.10
zcat logfile.16.Z | grep 10.10.10.11 > output_logfile.16.Z_10.10.10.11

and so on

Thanks
 

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LEARN ABOUT MOJAVE

vconsole.conf

VCONSOLE.CONF(5)                                                   vconsole.conf                                                  VCONSOLE.CONF(5)

NAME

       vconsole.conf - configuration file for the virtual console

SYNOPSIS

       /etc/vconsole.conf

DESCRIPTION

       The /etc/vconsole.conf file configures the virtual console, i.e. keyboard mapping and console font.

       The basic file format of the vconsole.conf is a newline-separated list environment-like shell-compatible variable assignments. It is
       possible to source the configuration from shell scripts, however, beyond mere variable assignments no shell features are supported,
       allowing applications to read the file without implementing a shell compatible execution engine.

       Note that the kernel command line options vconsole.keymap=, vconsole.keymap.toggle=, vconsole.font=, vconsole.font.map=,
       vconsole.font.unimap= may be used to override the console settings at boot.

       Depending on the operating system other configuration files might be checked for configuration of the virtual console as well, however only
       as fallback.

OPTIONS

       The following options are understood:

       KEYMAP=, KEYMAP_TOGGLE=
           Configures the key mapping table of for they keyboard.  KEYMAP= defaults to us if not set. The KEYMAP_TOGGLE= can be used to configured
           a second toggle keymap and is by default unset.

       FONT=, FONT_MAP=, FONT_UNIMAP=
           Configures the console font, the console map and the unicode font map.  FONT= defaults to latarcyrheb-sun16.

EXAMPLE

       Example 1. German keyboard and console

       /etc/vconsole.conf:

           KEYMAP=de-latin1
           FONT=latarcyrheb-sun16

SEE ALSO

       systemd(1), loadkeys(1), setfont(8), locale.conf(5)

AUTHOR

       Lennart Poettering <lennart@poettering.net>
           Developer

systemd                                                             10/07/2013                                                    VCONSOLE.CONF(5)
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