經常會遇到下載的文件或電子書，名字中間都包含了一些網址信息，實際使用中由于名字太長不方便，下面的腳本使用正則表達式來對目錄下的所有文件重命名：
例如：

修改前：[武林站長站]Mac OS X for Unix Geeks[www.jb51.net].mobi
修改后：Mac OS X for Unix Geeks.mobi

python代碼如下:
代碼如下:
import os
import re

def rename_dir(dir,regex,f):
  if not os.path.isdir(dir) or not os.path.exists(dir) :
    print("The input is not one directory or not exist.")
  for root,subdirs,files in os.walk(dir):
    for name in files:
      oldname = name         
      newname = re.sub(regex,f,name)
      print("Before : " + os.path.join(root,oldname))
      print("After  :  " + os.path.join(root,newname))
      if not name == newname and not os.path.exists(os.path.join(root,newname)):
        os.rename(os.path.join(root,oldname),os.path.join(root,newname))
    for dir in subdirs:
        rename_dir(os.path.join(root,dir))

rename_dir("C://Python31//test","/[.*/](.*)/[www.jb51.net/](.*)",lambda m:m.group(1)+m.group(2))

用perl寫了下，感覺代碼也沒有少寫多少

代碼如下:
use strict;
use warnings;
use File::Find;

my $regex = "http://[.*//](.*)//[www.jb51.net//](.*)";
# $replace doesn't work
my $replace = "/$1/$2";

sub wanted {
 my $name = $File::Find::name;
 if( -f $name){
   my $newname =$name;
   $newname =~ s/$regex/$1$2/;
   print "Before: $File::Find::name/n";
   print "After : $newname/n";
   if( !-e $newname) {
     rename($name, $newname);
   }
 }
}

sub rename_dir{
  my ($dir,) = @_;
  if (!-d $dir || !-e $dir){
    print"The input is not directory or not exist.";
  }
  find(/&wanted, $dir);
}
&rename_dir("c://perl//test");

perl 實現2

代碼如下:
use strict;
use warnings;

my $regex = "http://[.*//](.*)//[www.jb51.net//](.*)";
# $replace doesn't work
my $replace = "/$1/$2";

sub rename_dir{
    my $dir = shift;
    if (!-d $dir || !-e $dir){
      print"The input is not directory or not exist.";
    }
    opendir(DIR, $dir) || die "Cannot opendir $dir.";
    foreach (readdir(DIR)) {
      if ($_ eq '.' || $_ eq '..') {next;}