Disk almost full? Searching for 'copy' or deleting identical filenames is how … · @KOF97AI · TwKit

@KOF97AI

Disk almost full? Searching for 'copy' or deleting identical filenames is how critical configuration files get wiped out silently. When managing automated dataset archives at Nathan AI Lab, deduplication is pure math: 1. Match SHA-256 byte fingerprints Filenames are arbitrary labels; cryptographic hashes represent absolute binary truth. Pre-filter by file size first, then compute cryptographic hashes for candidates. Zero false positives. 2. Replace duplicates with hardlinks instead of deleting Many build scripts depend on rigid directory structures. Using filesystem hardlinks points multiple paths to the exact same physical disk blocks. You recover hundreds of gigabytes while keeping every script intact. 3. Always mandate dry-runs and automated snapshots Before running any destructive unlink, dump a dry-run report. Accidental deletion takes 2 seconds; recovery takes days. Recovery cost always dwarfs disk price. #DevOps #IndieDev #DataEngineering #Automation #CleanCode

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