How can you clean up temporary files that are older than a specific date?

Question

ICSM Computer · Answer

To clean up temporary files older than a specific date in C#, you can:
Get all files in the temp directory.Check each file's last write or creation time.Delete files older than your specified threshold.
Example: Delete Temp Files Older Than 7 Days
using System;
using System.IO;
class TempFileCleaner
{
    public static void DeleteOldTempFiles(string tempPath, int daysOld)
    {
        if (!Directory.Exists(tempPath))
            return;
        DateTime threshold = DateTime.Now.AddDays(-daysOld);
        foreach (string file in Directory.GetFiles(tempPath))
        {
            try
            {
                DateTime lastWrite = File.GetLastWriteTime(file);
                if (lastWrite andlt; threshold)
                {
                    File.Delete(file);
                    Console.WriteLine($"Deleted: {file}");
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Failed to delete {file}: {ex.Message}");
            }
        }
    }
}
Usage
string tempPath = Path.GetTempPath(); // or a custom directory
TempFileCleaner.DeleteOldTempFiles(tempPath, daysOld: 7);
Tips
You can also use File.GetCreationTime() if you prefer.For recursive cleanup (subdirectories), use Directory.GetFiles(path, "*", SearchOption.AllDirectories).Consider running this in a scheduled task for regular cleanup.
Read More
How do you implement retry logic when reading a file that may be temporarily unavailable?Temporary file to be automatically deleted after the program ends?How do you create a temporary file in C#?

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How can you clean up temporary files that are older than a specific date?

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Example: Delete Temp Files Older Than 7 Days

Usage

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