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Full Discussion: save every line in log file with matched string
Top Forums Shell Programming and Scripting save every line in log file with matched string Post 302300561 by insamniac on Tuesday 24th of March 2009 12:05:27 PM
Old 03-24-2009
Java
Here's a way you could do it in ksh.. not the most efficient way, but worth a shot to see if it eats up your system resources as badly as your method..

Code:
#!/bin/ksh

logfile=/path/to/logfile
namelist=/path/to/namelist
outputdir=/output/dir


cat $namelist | while read name
do

   grep $name $logfile > temp
   if [ $(cat temp | wc -l) -ne 0 ];then 
    
     mkdir  ${outputdir}/$name
     cat temp > ${outputdir}/$name
     cat temp > ${outputdir}/${name}/${name}.txt
       
    fi

done

 

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LEARN ABOUT DEBIAN

exigrep

EXIGREP(8)						      System Manager's Manual							EXIGREP(8)

NAME

       EXIGREP - Search Exim's main log

SYNOPSIS

       exigrep [-l] pattern [log file] ...

DESCRIPTION

       The  exigrep  utility  is  a  Perl script that searches one or more main log files for entries that match a given pattern.  When it finds a
       match, it extracts all the log entries for the relevant message, not just those that match the pattern.	Thus, exigrep can extract complete
       log entries for a given message, or all mail for a given user, or for a given host, for example.

       The -l flag means 'literal', that is, treat all characters in the pattern as standing for themselves.  Otherwise the pattern must be a Perl
       regular expression.  The pattern match is case-insensitive.  If no file names are given on the command line, the standard input is read.

       If the location of a zcat command is known from the definition of ZCAT_COMMAND in Local/Makefile, exigrep  automatically  passes  any  file
       whose name ends in COMPRESS_SUFFIX through zcat as it searches it.

BUGS

       This manual page needs a major re-work. If somebody knows better groff than us and has more experience in writing manual pages, any patches
       would be greatly appreciated.

SEE ALSO

       exim(8), perlre(1), /usr/share/doc/exim4-base/

AUTHOR

       This manual page was stitched together from spec.txt by Andreas Metzler <ametzler at downhill.at.eu.org>, for the Debian  GNU/Linux  system
       (but may be used by others).

								  March 26, 2003							EXIGREP(8)
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