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Full Discussion: How to grep a log file for words listed in separate text file?
Top Forums Shell Programming and Scripting How to grep a log file for words listed in separate text file? Post 302852545 by nbsparks on Wednesday 11th of September 2013 06:16:39 PM
Old 09-11-2013
[SOLVED] How to grep a log file for words listed in separate text file?
Hello,

I want to grep a log ("server.log") for words in a separate file ("white-list.txt") and generate a separate log file containing each line that uses a word from the "white-list.txt" file.

Putting that in bullet points:
  • Search through "server.log" for lines that contain any word contained within "white-list.txt" file
  • Create separate file ("player_activity.log")
I've done this before with this command line:
Code:
grep -E "player1|player2|player3" server.log >player_activity.log

But I'm tired of modifying that line and would just like to draw from my known player list in a different file. I want it to substitute the "player1|player2|player3" with looking through a white-list.txt that looks like:

Code:
player1
player2
player3
player4
player5
player6

The output should look like this:
Code:
2013-08-11 08:46:23 [INFO] player1[/xxx.xxx.xxx.xxx:53531] logged in with entity id 1072 at ([regolare] -220.7308956951062, 62.0, -108.79669524885138)
2013-08-11 08:46:23 [INFO] Player joined: player1
2013-08-11 08:50:50 [INFO] player2[/xxx.xxx.xxx.xxx:53019] logged in with entity id 5685 at ([mundusprime] 1995.377727365253, 75.0, 883.1106329044326)
2013-08-11 08:50:50 [INFO] Player joined: player2
2013-08-11 08:51:00 [INFO] <player1> morning
2013-08-11 08:51:06 [INFO] <player2> hola mi compadre!
2013-08-11 08:51:31 [INFO] <player2> how goes the pyramid?
2013-08-11 08:51:53 [INFO] <player1> roof is complete, need to finish clearing interior.
2013-08-11 08:52:06 [INFO] <player2> I took a peek the other day, it's impressive!

Last edited by nbsparks; 09-11-2013 at 08:11 PM..
 

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LEARN ABOUT CENTOS

lintian-info

LINTIAN-INFO(1)                                         User Contributed Perl Documentation                                        LINTIAN-INFO(1)

NAME

       lintian-info - give detailed information about Lintian's error tags

SYNOPSIS

       lintian-info [log-file...]

       lintian-info --tags tag ...

DESCRIPTION

       The lintian-info command parses the output of the lintian command and gives verbose information about the listed Lintian error tags, parses
       a Lintian override file and gives verbose information about the tags included, or (if given the -t or --tags option) explains a given tag
       or tags.

       If no log-file is specified on the command line, this command expects its input on stdin. Thus, the output of lintian can either be piped
       through lintian-info or a log file produced by lintian can be processed with this command.  (Note, though, that the lintian command has a
       command line option -i to display the same results as lintian-info, so you will not normally need to pipe the output of lintian into this
       command.)

OPTIONS

       -a, --annotate
           Read from standard input or any files specified on the command line and search the input for lines formatted like Lintian override
           entries.  For each one that was found, display verbose information about that tag.

       -h, --help
           Display usage information and exit.

       --profile prof
           Use the severities from the vendor profile prof when displaying tags.  If the profile name does not contain a slash, the default
           profile for than vendor is chosen.

           If not specified, lintian-info loads the best profile for the current vendor.

           Please Refer to the Lintian User Manual for the full documentation of profiles.

       -t, --tags
           Rather than treating them as log file names, treat any command-line options as tag names and display the descriptions of each tag.

EXIT STATUS

       If -t or --tags was given and one or more of the tags specified were unknown, this command returns the exit code 1.  Otherwise, it always
       returns with exit code 0.

SEE ALSO

       lintian(1)

AUTHORS

       Niels Thykier <niels@thykier.net>

       Richard Braakman <dark@xs4all.nl>

       Christian Schwarz <schwarz@monet.m.isar.de>

perl v5.14.2                                                        2013-02-16                                                     LINTIAN-INFO(1)
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