remove_old_pics

#!/usr/bin/perl
#
# remove oldest pictures (jpg) from "Pictures" directory if there are
# more than a certain number of them.
#

use strict;
use warnings;

use English qw( -no_match_vars );
use Const::Fast;
use File::stat;
use version; our $VERSION = qv('v2017.11.14');

const my $PICDIR  => '/media/sf_Pictures';
const my $MAXPICS => 400;
const my $PICPAT  => qr/ [.] jpg $ /x;

opendir( D, $PICDIR ) || die "Can't open $PICDIR: $ERRNO\n";
my @pics = map { $_->[1] }
    sort { $a->[0] <=> $b->[0] }
    map { [ stat("$PICDIR/$_")->mtime, $_ ] }
    grep {/$PICPAT/} readdir D;
closedir D || die "Couldn't close $PICDIR: $ERRNO\n";
while ( scalar @pics > $MAXPICS ) {
    my $pic = shift @pics;
    print "Removing:    $pic\n";
    unlink "$PICDIR/$pic" or warn "Unlinking $PICDIR/$pic failed: $ERRNO\n";
}
print "\n";