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#!/usr/bin/perl -w use strict; use Time::ParseDate; use Time::CTime; use Compress::Zlib; my $out_dir=$ENV{LOG_DIR}; my $cur_str=''; my $outlog; my $line; $SIG{TERM}= sub { #handle apache closing by closing the .gz file properly; if(defined $outlog){ $outlog->gzclose(); undef $outlog; } }; while (defined($line=<STDIN>)){ chomp $line; if($line=~/\[(\d+)\/(\w+)\/(\d+)\:/){ #lines must contain an extractable date my ($dd,$mm,$yy)=($1,$2,$3); $dd=~s/^0//g; my $str="$dd $mm $yy"; if($str ne $cur_str){ # new day, rotate to next file $cur_str=$str; my $dt=parsedate($str); my $ts=strftime("%Y_%m_%d",localtime($dt)); $ts=~s/\s/0/g; # close current log (If necessary) $outlog->gzclose() if defined $outlog; #find a unique name for the new log my $ct=1; my $fn="$out_dir$ts.0.gz"; while(-f $fn){ $fn="$out_dir$ts.$ct.gz"; $ct++; } $outlog=gzopen($fn,"a"); } $outlog->gzwrite($line."\n"); }else{ # unrecognized line.... there should probably be some error chec +king here } } if(defined $outlog){ $outlog->gzclose(); }

In reply to Apache log splitter/compressor by lhoward

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    [moritz]: for short subs, I sometimes let them work on $_[0] directly
    [Eily]: moritz but that should be fine unless you modify them
    [choroba]: if you modify them, Perl will crash with "Modification of a read-only value attempted" for $1
    [choroba]: I can't replicate the situation, but I remember it was very hard to debug

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