Re: file and dir time stamps

[MAC OS X]

A great man once said:
 use file::finder; # from the CPAN
  unlink file::finder->atime('+30')->in(glob "/share_folder/user_*");
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On 24 Jan 2005, at 12:31, Francesco wrote:
Thomas Browner ha scritto:
I have a hard time writing a script that look at file and directories  
time and date stamp then delete any thing that is so many days old.  
if someone would give me a good starting point.
Some time ago i had the same problem, so here what i came up with.  
This script includes some options, can be used interactively or with a  
configuration file, can be recursive or not, and so on. I hope the  
documentation included in the script could be enough.

HTH
--
Francesco
# FILE: clean.pl
# NAME: clean old files
# VERSION: 0.3
# AUTHOR: abeni
# MODIFIED: 01/12/2004
# DESCRIPTION: it deletes files older than X days in a given folder.
#                          Parameters can be given from command line:
#                         "clean.pl -d folder1 days1 folder2 days2"
#                          or with an external configuration file:
#              oppure tramite un file di configurazione:
#                 "clean.pl -f configfile"
#              The configuration file should have on each row:
#                 "folder days"
#              For other parameters run clean.pl -h

use strict;
use Getopt::Std;
sub clean;              # procedura di cancellazione vera e propria
sub usage;              # sub che illustra la sintassi del programma
sub cmd_line;   # sub che reperisce i parametri da linea di comando
sub cfg_file;   # sub che reperisce i parametri da file di configurazione
sub interact;   # sub che richiede i parametri in modalita' interattiva
(@ARGV > 0) or die usage;
my %days = ();	# hash con nomi directory e giorni di anzianita' dei  
file da cancellare
my $dir;
my $progdir = "d:/perls/prog/clean/";
my $logfile = $progdir."clean.log";
my %opts;


### PRINCIPALE
##############
# analizza gli switch passati al programma ed elabora di conseguenza i  
parametri
getopts('rd:f:h',\%opts);

SWITCH: {
                $opts{d}        && do {%days=split/,/,$opts{d}; last SWITCH};
                $opts{f}        && do {my $file = $opts{f};
                                        %days=cfg_file($file);
                                        last SWITCH};
                $opts{h}        && usage;
};
open (LOG,">> $logfile") or die "Impossibile accedere al file di log  
$logfile: $!";

print LOG "\n\n***".scalar(localtime)."\n\n";
# avvia la cancellazione ogni cartella passata come parametro
foreach $dir (keys %days) {
        my $filecount = 0;
        print LOG "Cartella: $dir\nGiorni: $days{$dir}\n";
        $filecount += clean($dir,$days{$dir});
        print LOG "Totale file cancellati: $filecount\n\n";
}
print "End";
### CLEAN
#########
sub clean {
	my $dir = shift;
	my $days = shift;
	my $filecount = 0;
	opendir (DIR,$dir) or do {print LOG "Impossibile aprire la cartella  
$dir: $!\n\n";
					next;};

	foreach my $file (readdir DIR) {
		next if $file =~ /^\.*$/;
		if (-d "$dir\\$file") {
			if ($opts{r}) {
				$filecount += clean("$dir\\$file",$days);
				rmdir "$dir\\$file" or print LOG "Impossibile cancellare la  
cartella $dir: $!\n";
			};
		next;
		};
		next unless (-M "$dir\\$file" > $days);
		unlink ("$dir\\$file") or print LOG "Impossibile cancellare il file  
$dir\\$file: $!\n";
		$filecount++;
	}
	closedir DIR;
	return $filecount;
}

### USAGE
#########
sub usage {
	print "\nSyntax:\n";
	print "   $0 -d \"[dir1],[days],[dir2],[days]...\" [-r]\n";
	print "   $0 -f [config file] [-r]\n";
	print "\nThe configuration file has the following format:\n";
	print "   dir1, days\n";
	print "   dir2, days\n";
	print "   ...\n\n";
	print "If you choose -f option without specifying a configuration  
file,\n";
	print "the script looks for a \"clean.ini\" in the script folder\n";
	print "If you choose both -d and -f, the -d option will prevail\n";
	print "and command line parameters will be used.\n\n";
	print "The -r option enable recursive deletion (go into  
subfolders)\n\n"
	print "To show this help:\n";
	print "   $0 -h\n";
	exit;
}

### CFG_FILE
############
sub cfg_file {
	my $file = (shift or $progdir."clean.ini");
	my %days;
	open (FILE, $file) or die "Can't open configuration file $file: $!";
	while (<FILE>) {
		next if /^#/;
		next unless /\S/;
		chomp;
		# verifica il formato
		die "Errori nel file di configurazione: $_\n" unless  
(/([^\,]+)\,(\d+)$/);		
		$days{$1} = $2;
	}
	return %days;
}

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