Скачать или смотреть How to Loop Through Files in a Folder with Spaces in Their Names Using Batch Scripts

Discover how to effectively loop through files (including those with spaces) in your directory with a batch script. Learn some handy techniques and tips for processing `.tif` files smoothly.
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How to Loop Through Files in a Folder with Spaces in Their Names Using Batch Scripts

Working with batch files can sometimes present challenges, especially when dealing with file names containing spaces. One common task is looping through a folder's contents to process specific file types, such as .tif files. This guide will guide you through the steps to effectively loop through files, handle spaces in file names, and implement an algorithm as needed.

The Initial Problem

When attempting to loop through files in a folder containing spaces in both the folder and file names, many users encounter issues with their scripts. The typical method using FOR /F does not work correctly due to the spaces causing unexpected behavior. Let's break down the solution step by step.

Proposed Solution

Fortunately, you can simplify your script by utilizing a standard FOR loop instead of the more complicated FOR /F loop. This method will adequately handle file names with spaces.

Example Script

Here’s a revised script to loop through .tif files within a specified folder:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Script

@ echo off: This command stops the shell from displaying the commands being executed.

setlocal enabledelayedexpansion: This enables delayed variable expansion, which allows you to manipulate variables within loops.

set "mypath_import=C:\Some path": This sets up the variable for your path. Ensure to include the complete path to the directory you're targeting.

for %%i in ("%mypath_import%*.tif") do (...): This is the main loop that iterates through all .tif files in the specified folder.

set "infile=%%~i": This retrieves the full path of the current file into the variable infile.

echo "!infile:.tif=_UTM.tif!": This replaces the .tif extension with _UTM.tif for display purposes.

Modifying the Output

If you want to change the output to show only the file name along with the extension, you can modify the line within the loop:

[[See Video to Reveal this Text or Code Snippet]]

In this case, %%~nxi retrieves only the name and extension of the file.

Simplifying Further

If you want to avoid the need for delayed expansion altogether, here’s another alternative that produces similar output:

[[See Video to Reveal this Text or Code Snippet]]

Important Considerations

Avoid Accumulating Suffixes: If you plan to run the script multiple times, you may unintentionally create files named like filename_UTM_UTM.tif. To avoid this, add a filter to exclude files that have already been processed:

[[See Video to Reveal this Text or Code Snippet]]

This command uses findstr to filter out any files ending with _UTM.tif from the loop.

Conclusion

In conclusion, handling file names with spaces in batch scripting doesn’t have to be complex. By using standard FOR loops, you can efficiently process all files in a directory, regardless of spaces in their names. Follow the above examples to tailor your scripts for any folder and file type you need to work with.

Happy scripting!