bat Batch Create/Delete Files/Folders Modify File Names Extensions#
1. Create/Delete Folders#
Command: md folder name you want to create or mkdir folder name you want to create
2. Create/Delete Files#
1. Create Empty Files#
Empty files mean that there is nothing inside the created file, it is an empty file.
Command: type nul>file name you want to create
Example: type nul>my video.txt
Created a file named my video.txt
2. Create Non-Empty Files#
Non-empty files have content written inside them when the command is executed.
Command: echo content you want to write into the file>file name you want to create
3. Delete Files#
Command: del file name you want to delete
3. Batch Change File Extensions#
Command: ren * .png *.jpg
If you want to change the extension of any file, replace the extension you want to modify with an asterisk (*). For example, to change the extension of all files to txt, use ren *.* *.txt.
4. Rename Files with a Regular Pattern and Prefix#
- Create a text file in the folder where you want to rename the files.
- Enter the following content:
@echo off
set a=0
setlocal EnableDelayedExpansion
for %%n in (*.jpg) do (
set /A a+=1
ren "%%n" "prefix content!a!suffix content.png"
)
Replace .jpg with the extension of the files you want to modify, and customize the prefix and suffix according to your needs. !a! represents a variable that increases from 0, and .png is the new extension after the modification.
3. Save the file and change the extension to .bat.
4. Double-click to execute and the modification will be successful.
This way, all jpg extensions will be changed to png, with a unified prefix of "image-", and the same applies to other files.
5. Custom Changes to Various Files#
By mastering the commands mentioned above and combining them with the functionality of Excel, you can quickly generate the files you want. The explanation of Excel is not covered here.