老爸的工具箱之：根据日期批量重命名照片
突发奇想，想搞出这么个“老爸的工具箱”系列来，虽然我不确定这个系列中最终会有多少文章，但是感觉在女儿的成长过程中，会有不少内容逐渐添加进来，一来作为记录，二来也希望对其他和我一样的老爸有点参考。
好吧，第一个工具是一个照片批量重命名的工具。女儿出生以来，我们每天都要给她拍一张照片来记录她的成长，看着小家伙一天天变样，的确是一件挺喜人的事。但这事操作起来也有点麻烦，基本流程是：
- 每天拍好几张照片
- 从中挑出比较好的一张
- 按照日期命名后存档，并上传到SkyDrive
但要是每天都这么做，难免太累了点，我差不多在数码相机中积累一个月的时候才会去整理一下。选出每天的照片（这个比较难自动化吧），此时如果去手工命名30张照片绝对是件痛苦的事，慢，烦，且容易出错。我希望能有个工具自动根据日期重命名照片，于是写了个perl的脚本来重命名指定目录下所有的jpg文件。只需把选中的照片都拷到一指定目录下，并调用以下命令：
BatchRenaming.pl <Folder>
需要注意的是：
- 程序只处理指定目录，并不会递归扫描其所有的子目录
- 如果你不小心选了多张同一天的照片，程序会自动帮你备份到名为backup的子目录中
以下是程序代码，另外，你也可以在这里拿到持续维护的版本。
BatchRenaming 1 #####
2 #
3 # This script would rename all jpg files in a folder to its creation date, for example: 20101009
4 # For a photo, the real creation date = modified date
5 #
6 # Usage:
7 # BatchRenaming.pl <Folder>
8 # BatchRenaming.pl C:\MyPhotoes\
9 #
10 # Author: Baiyan Huang
11 # Date: 10/9/2010
12 #
13 #####
14
15 use strict;
16 if(@ARGV != 1)
17 {
18 print "The syntax should be:\n\tBatchRenaming.pl <Folder> \n";
19 }
20
21 my $Folder = $ARGV[0];
22 $Folder =~ s/^\s*//;
23 $Folder =~ s/\s*$//;
24 $Folder =~ s/\\/\//g;
25 $Folder .= "/" if($Folder !~ /\/$/);
26 ###print $Folder, "\n";
27
28 chdir $Folder;
29 my @AllFiles = glob "*.jpg";
30 ###print @AllFiles, "\n";
31
32 foreach my $File (@AllFiles)
33 {
34 chomp $File;
35
36 # Get modified timestamp
37 my $mtime;
38 my(undef, undef, undef, undef, undef, undef, undef, undef, undef, $mtime) = stat($File);
39
40 # Get relative date
41 my ($day, $mon, $year);
42 my(undef, undef, undef, $day, $mon, $year) = localtime($mtime);
43
44 # Tranform to human-readable date
45 $year = 1900 + $year;
46 $mon += 1;
47 $mon = "0" . $mon if($mon < 10);
48 $day = "0" . $day if($day < 10);
49
50 my $date = $year . $mon . $day;
51 ###print "$date\n";
52
53 my $NewFileName = $date . ".jpg";
54
55 # Backup the file if there is already one exist of the same date
56 if (-e $NewFileName and lc($NewFileName) ne lc($File))
57 {
58 my $Backup = "backup";
59 mkdir $Backup if(! -e $Backup);
60 rename $File, $Backup . "/" . $File;
61 next;
62 }
63
64 # rename
65 print $NewFileName, "\n";
66 rename $File, $NewFileName;
67 }
68
2 #
3 # This script would rename all jpg files in a folder to its creation date, for example: 20101009
4 # For a photo, the real creation date = modified date
5 #
6 # Usage:
7 # BatchRenaming.pl <Folder>
8 # BatchRenaming.pl C:\MyPhotoes\
9 #
10 # Author: Baiyan Huang
11 # Date: 10/9/2010
12 #
13 #####
14
15 use strict;
16 if(@ARGV != 1)
17 {
18 print "The syntax should be:\n\tBatchRenaming.pl <Folder> \n";
19 }
20
21 my $Folder = $ARGV[0];
22 $Folder =~ s/^\s*//;
23 $Folder =~ s/\s*$//;
24 $Folder =~ s/\\/\//g;
25 $Folder .= "/" if($Folder !~ /\/$/);
26 ###print $Folder, "\n";
27
28 chdir $Folder;
29 my @AllFiles = glob "*.jpg";
30 ###print @AllFiles, "\n";
31
32 foreach my $File (@AllFiles)
33 {
34 chomp $File;
35
36 # Get modified timestamp
37 my $mtime;
38 my(undef, undef, undef, undef, undef, undef, undef, undef, undef, $mtime) = stat($File);
39
40 # Get relative date
41 my ($day, $mon, $year);
42 my(undef, undef, undef, $day, $mon, $year) = localtime($mtime);
43
44 # Tranform to human-readable date
45 $year = 1900 + $year;
46 $mon += 1;
47 $mon = "0" . $mon if($mon < 10);
48 $day = "0" . $day if($day < 10);
49
50 my $date = $year . $mon . $day;
51 ###print "$date\n";
52
53 my $NewFileName = $date . ".jpg";
54
55 # Backup the file if there is already one exist of the same date
56 if (-e $NewFileName and lc($NewFileName) ne lc($File))
57 {
58 my $Backup = "backup";
59 mkdir $Backup if(! -e $Backup);
60 rename $File, $Backup . "/" . $File;
61 next;
62 }
63
64 # rename
65 print $NewFileName, "\n";
66 rename $File, $NewFileName;
67 }
68
