Question

powershell 给文件批量改名

从#之后到.mp4之前的部分把它们删除，例如把“外语学习#ls32.mp4”改成“外语学习.mp4”就行。
O(∩_∩)O谢谢

Answer 1

重命名脚本：

dir | foreach {
 $start=$_.name.IndexOf("#")
 $end=$_.name.IndexOf(".mp4");
 $newFileName='{0}{1}' -f $_.Name.Substring(0,$start),$_.Name.Substring($end)
 $_ | Rename-Item -NewName $newFileName
 }

重命名前：

Mode                LastWriteTime     Length Name                                                                
----                -------------     ------ ----                                                                
-a---         4/21/2014   9:27 AM          0 外语学习1#ls32.mp4                                                      
-a---         4/21/2014   9:27 AM          0 外语学习4#ls35.mp4                                                      
-a---         4/21/2014   9:27 AM          0 外语学校3#ls37.mp4

重命名后：

Mode                LastWriteTime     Length Name                                                                
----                -------------     ------ ----                                                                
-a---         4/21/2014   9:27 AM          0 外语学习1.mp4                                                           
-a---         4/21/2014   9:27 AM          0 外语学习4.mp4                                                           
-a---         4/21/2014   9:27 AM          0 外语学校3.mp4