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Full Discussion: Perl script to rotate logs
Top Forums Shell Programming and Scripting Perl script to rotate logs Post 302177323 by theninja on Thursday 20th of March 2008 05:24:04 PM
Old 03-20-2008
Ok I am almost there, only two issues left I think...
1. $PIDFILE format not correct for Perl? Currently commented out because it bombed.
2. Not picking up the logfile names....see output (print $map does not pick up the lognames) I did move the script into the log directory where the logs reside.

Code:
#!/usr/local/bin/perl
use warnings;

# $PIDFILE=`ps -aefx | grep logrot | grep -v grep |awk '{print $2}'`;
$LOGPATH='/home/logs';          # Location of Log files
$ARCHIVE_DIR='/home/log_archive/logs';     # Location of archived logs
$MONTH=`date +%m`;                      # Current Month
$DAY=`date +%d`;                        # Current Day of month
$MAXCYCLE='2';                          # Number of days to keep log files
$GZIP='/usr/contrib/bin/gzip';          # Location of gzip for compression
$TAR='/usr/bin/tar';                    # Location of tar command

@LOGNAMES=map {glob($_) } {'fin*.log*','*twiz*.log*','nestl*','riesen*'};
%ARCHIVE=('*.$MONTH.*'=>1);
# print "$PIDFILE\n";
chdir $LOGPATH;  # Change to the log directory
printf "$LOGPATH\n";
print "$map";
foreach $filename (@LOGNAMES) {
  my $oldest = "$filename.$MAXCYCLE";
printf "$filename\n";
print "DEBUG: oldest is '$oldest'\n";
  archive($oldest) if -e $oldest and $ARCHIVE{$filename};
print "DEBUG: '$oldest' exists\n" if -e $oldest;
print "DEBUG: ARCHIVE{'$filename'} is true\n" if $ARCHIVE{$filename};
print "DEBUG: would archive oldest\n" if -e $oldest and $ARCHIVE{$filename};
  for (my $s=$MAXCYCLE; $s >= 0; $s-- ) {
print "DEBUG: s is $s\n";
        $oldname = $s ? "$filename.$s" : $filename;
        $newname = join(".",$filename,$s+1);
print "DEBUG: oldname now '$oldname', newname is '$newname'\n";
print "DEBUG: would rename '$oldname' to '$newname'\n" if -e $oldname;
        rename $oldname,$newname if -e $oldname;
    }
}
#kill 'HUP',`cat $PIDFILE`;

 sub archive {
        my $f = shift;
        my $base = $f;
        $base =~ s/\.\d+$//;
        my $fn = strftime("$base.%Y-%m-%d_%H:%M.gz.idea",localtime);
        system "$GZIP -9 -c $f | $GZIP $map > $fn";
        system "$TAR rvf $base.tar --remove-files $fn";
 }

printf "$LOGPATH\n";
printf "$ARCHIVE_DIR\n";
printf $MONTH;
printf $DAY;
printf "$MAXCYCLE\n";
printf "$GZIP\n";
printf "$TAR\n"


here is the output of above code

/home/logs
Use of uninitialized value in concatenation (.) or string at ./logrotate.pl line 19. (line 19 = print "$map"Smilie

HASH(0x40010f78)
DEBUG: oldest is 'HASH(0x40010f78).2'
DEBUG: s is 2
DEBUG: oldname now 'HASH(0x40010f78).2', newname is 'HASH(0x40010f78).3'
DEBUG: s is 1
DEBUG: oldname now 'HASH(0x40010f78).1', newname is 'HASH(0x40010f78).2'
DEBUG: s is 0
DEBUG: oldname now 'HASH(0x40010f78)', newname is 'HASH(0x40010f78).1'
/home//logs
/home/log_archive/ogs
03
20
2
/usr/contrib/bin/gzip
/usr/bin/tar


Thanks everyone almost there.

Last edited by theninja; 03-20-2008 at 06:32 PM..
 

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Level(3)						User Contributed Perl Documentation						  Level(3)

NAME
Log::Log4perl::Level - Predefined log levels SYNOPSIS
use Log::Log4perl::Level; print $ERROR, " "; # -- or -- use Log::Log4perl qw(:levels); print $ERROR, " "; DESCRIPTION
"Log::Log4perl::Level" simply exports a predefined set of Log4perl log levels into the caller's name space. It is used internally by "Log::Log4perl". The following scalars are defined: $OFF $FATAL $ERROR $WARN $INFO $DEBUG $TRACE $ALL "Log::Log4perl" also exports these constants into the caller's namespace if you pull it in providing the ":levels" tag: use Log::Log4perl qw(:levels); This is the preferred way, there's usually no need to call "Log::Log4perl::Level" explicitely. The numerical values assigned to these constants are purely virtual, only used by Log::Log4perl internally and can change at any time, so please don't make any assumptions. If the caller wants to import these constants into a different namespace, it can be provided with the "use" command: use Log::Log4perl::Level qw(MyNameSpace); After this $MyNameSpace::ERROR, $MyNameSpace::INFO etc. will be defined accordingly. Numeric levels and Strings Level variables like $DEBUG or $WARN have numeric values that are internal to Log4perl. Transform them to strings that can be used in a Log4perl configuration file, use the c<to_level()> function provided by Log::Log4perl::Level: use Log::Log4perl qw(:easy); use Log::Log4perl::Level; # prints "DEBUG" print Log::Log4perl::Level::to_level( $DEBUG ), " "; To perform the reverse transformation, which takes a string like "DEBUG" and converts it into a constant like $DEBUG, use the to_priority() function: use Log::Log4perl qw(:easy); use Log::Log4perl::Level; my $numval = Log::Log4perl::Level::to_priority( "DEBUG" ); after which $numval could be used where a numerical value is required: Log::Log4perl->easy_init( $numval ); COPYRIGHT AND LICENSE
Copyright 2002-2009 by Mike Schilli <m@perlmeister.com> and Kevin Goess <cpan@goess.org>. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.12.1 2010-02-07 Level(3)
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