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tar, zip and gzip Cookbook: Archive Without node_modules, Extract Safely, Symlinks and Checksums

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Self-Hosting & Infra beginner 5 min read $0.01 Updated 2026-10-20

Tested GNU tar, zip, gzip and sha256sum: -czf and -tzf listing, --exclude, -C for relative paths, leading slash stripping, zip -x and -y symlink behavior, gzip -t and -k, and checksum -c detecting tampering.

Create and unpack archives without surprises: exclude folders, avoid absolute paths, extract into a target directory, keep symlinks in zip files, test gzip integrity and verify downloads with sha256sum.

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