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FileDO, published by SZA, is a fast command-line utility for Windows designed for storage testing, diagnostics, and file management across storage devices, folders, and network shares. The software is currently at version 2607301014, with a total of three versions released, indicating an actively maintained release history. Falling into the category of storage and disk utility software, FileDO serves several distinct purposes. Its storage testing capabilities include fake-capacity detection, which identifies counterfeit USB drives and SD cards by writing and verifying real data against the device's claimed capacity, protecting users from fraudulent or mislabeled hardware. It also functions as a benchmarking tool, measuring read and write speeds to help users evaluate storage performance. For data security, the tool provides a secure wipe feature that erases free space at multi-gigabyte-per-second speeds, making previously deleted data unrecoverable. On the file management side, FileDO detects and manages duplicate files using MD5 hashing combined with hash caching, which speeds up repeat scans by avoiding redundant hash computations. Additionally, it can copy large directory trees with progress reporting and timeout protection, ensuring that lengthy copy operations remain transparent and do not hang indefinitely. Its command-line interface makes it suitable for scripting, automation, and integration into administrative workflows, appealing to system administrators, IT professionals, and power users who need reliable, scriptable storage operations. Typical use cases include verifying the authenticity of newly purchased flash media, benchmarking drives before deployment, securely sanitizing disks prior to disposal or reuse, reclaiming space by removing duplicate files, and performing robust large-scale file transfers on Windows systems.
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