Return to Answer

added 35 characters in body

Source Link

edited May 9, 2012 at 22:16

8.4k
2
24
14

use warnings;
use strict;
use Time::Local qw/timelocal/;
use File::Spec;

## Process all input files.
while ( my $file = shift @ARGV ) { 

    ## Remove last '\n'.
    chomp $file;

    ## Extract date from file name.
    my ($date) = $file =~ m/.*_([^.]+)/ or next;

    ## Extract year, month and day from date.
    my ($y,$m,$d) = $date =~ m/(\d{4})(\d{2})(\d{2})/ or next;

    ## Get date in seconds.
    my $time = timelocal 0, 0, 0, $d, $m - 1, $y - 1900 or next;

    ## Get date in seconds five days ago.
    my $time_5_days_ago = time - 5 * 24 * 3600;

    ## Substract them, and if it is older delete it and print the
    ## event.
    if ( $time - $time_5_days_ago >< 0 ) { 
        unlink File::Spec->rel2abs( $file ) and printf qq[%s\n], qq[File $file deleted];
    }   
}

File ABC_20120508ABC_20120320.log deleted
File ABC_20120509ABC_20120430.log deleted
File ABC_20120502.log deleted

use warnings;
use strict;
use Time::Local qw/timelocal/;
use File::Spec;

## Process all input files.
while ( my $file = shift @ARGV ) { 

    ## Remove last '\n'.
    chomp $file;

    ## Extract date from file name.
    my ($date) = $file =~ m/.*_([^.]+)/ or next;

    ## Extract year, month and day from date.
    my ($y,$m,$d) = $date =~ m/(\d{4})(\d{2})(\d{2})/ or next;

    ## Get date in seconds.
    my $time = timelocal 0, 0, 0, $d, $m - 1, $y - 1900 or next;

    ## Get date in seconds five days ago.
    my $time_5_days_ago = time - 5 * 24 * 3600;

    ## Substract them, and if it is older delete it and print the
    ## event.
    if ( $time - $time_5_days_ago > 0 ) { 
        unlink File::Spec->rel2abs( $file ) and printf qq[%s\n], qq[File $file deleted];
    }   
}

File ABC_20120508.log deleted
File ABC_20120509.log deleted

use warnings;
use strict;
use Time::Local qw/timelocal/;
use File::Spec;

## Process all input files.
while ( my $file = shift @ARGV ) { 

    ## Remove last '\n'.
    chomp $file;

    ## Extract date from file name.
    my ($date) = $file =~ m/.*_([^.]+)/ or next;

    ## Extract year, month and day from date.
    my ($y,$m,$d) = $date =~ m/(\d{4})(\d{2})(\d{2})/ or next;

    ## Get date in seconds.
    my $time = timelocal 0, 0, 0, $d, $m - 1, $y - 1900 or next;

    ## Get date in seconds five days ago.
    my $time_5_days_ago = time - 5 * 24 * 3600;

    ## Substract them, and if it is older delete it and print the
    ## event.
    if ( $time - $time_5_days_ago < 0 ) { 
        unlink File::Spec->rel2abs( $file ) and printf qq[%s\n], qq[File $file deleted];
    }   
}

File ABC_20120320.log deleted
File ABC_20120430.log deleted
File ABC_20120502.log deleted

Source Link

answered May 9, 2012 at 22:03

Birei

8.4k
2
24
14

One way using perl:

Content of script.pl:

use warnings;
use strict;
use Time::Local qw/timelocal/;
use File::Spec;

## Process all input files.
while ( my $file = shift @ARGV ) { 

    ## Remove last '\n'.
    chomp $file;

    ## Extract date from file name.
    my ($date) = $file =~ m/.*_([^.]+)/ or next;

    ## Extract year, month and day from date.
    my ($y,$m,$d) = $date =~ m/(\d{4})(\d{2})(\d{2})/ or next;

    ## Get date in seconds.
    my $time = timelocal 0, 0, 0, $d, $m - 1, $y - 1900 or next;

    ## Get date in seconds five days ago.
    my $time_5_days_ago = time - 5 * 24 * 3600;

    ## Substract them, and if it is older delete it and print the
    ## event.
    if ( $time - $time_5_days_ago > 0 ) { 
        unlink File::Spec->rel2abs( $file ) and printf qq[%s\n], qq[File $file deleted];
    }   
}

To test it I create some files:

touch ABC_20120430.log ABC_20120502.log ABC_20120320.log ABC_20120508.log ABC_20120509.log

Check them with ls -1:

ABC_20120320.log                                                                                                                                                                                                                             
ABC_20120430.log                                                                                                                                                                                                                             
ABC_20120502.log                                                                                                                                                                                                                             
ABC_20120508.log                                                                                                                                                                                                                             
ABC_20120509.log                                                                                                                                                                                                                             
script.pl

Run the script like:

perl script.pl *.log

With following output:

File ABC_20120508.log deleted
File ABC_20120509.log deleted