I like my image file names to reflect the date the picture was taken. The following script renames JPEG files in the current directory according to the date stored in the EXIF headers. It also uses Term::ProgressBar to give you an idea of when it will be finished.
#!/usr/bin/perl
# Rename digital camera pictures to reflect the date they were taken
# (C) Christian Renz <crenz@web42.com> 20030615
use strict;
use warnings;
use Image::Info qw(image_info);
use Term::ProgressBar;
opendir CURDIR, '.' or
die "Cannot open current directory: $!\n";
my @files = grep /.jpe?g$/i, readdir CURDIR;
my $progress = Term::ProgressBar->new({name => 'Renaming images',
count => scalar @files,
ETA => 'linear'});
$progress->max_update_rate(1);
foreach (@files) {
# input format: 2003:06:13 21:30:41
# output format: 2003_0613_213041
my $date = image_info($_)->{DateTimeOriginal};
if ($date =~ /^(\d\d\d\d):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)$/) {
my $name = "$1_$2$3_$4$5$6.jpg";
rename $_, $name
unless -e $name;
}
$progress->update();
}
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