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Full Discussion: log monitoring continously and executing commands
Top Forums Shell Programming and Scripting log monitoring continously and executing commands Post 302502818 by pravin27 on Wednesday 9th of March 2011 02:20:47 AM
Old 03-09-2011
Could this help you ?
Code:
#!/usr/bin/perl
use strict;

my ($pos,$file_name_cur_date);
while (1){
        open(FH,"<","inputfile") or die "FAIL:- $!\n";
        if (defined ($pos)) { seek FH,$pos,0;}
        while(<FH>){
                if(/MAX connections reached/) {
                $file_name_cur_date="/tmp/netstat_".`date '+%d%m%Y%H%M%S'`;
                `netstat > $file_name_cur_date`;
                 sleep 5
                }
        }
        $pos=tell FH;
        close(FH);
}

 

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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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