Build a Python batch rename CLI with a default preview, collision checks, explicit apply, and tests for preserved contents and failure exits.……
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Reproduce Linux script startup failures, inspect CRLF and UTF-8 BOM bytes, and verify a new LF copy without changing the source or overwriting files.……
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Validate TLS certificates and check remaining validity with the Python standard library, JSON output, exit codes, and repeatable local tests.……
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Probe an IPv4 TCP endpoint with JSON and exit codes, then test listening ports, refused connections, and injected timeouts locally.……
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Validate ZIP backups without extraction, require expected files, and test corruption and failure exits.……
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Check exact CSV headers and field counts with the Python standard library, test multiline records and failure exit codes, and stop schema drift before imports.……
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Check free space at the output directory, combine peak demand with headroom, and stop jobs that exceed their budget.……
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Audit symlinks without modifying files, report JSON and exit codes, and test missing targets, permission failures, and link loops.……
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Reproduce SQLite write contention with two processes, bound lock waiting, use short transactions, and verify rollback, exit codes, and final rows.……
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Check report age, empty output, and future timestamps with the Python standard library, then verify JSON results and exit codes using repeatable failure tests.……
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Scan regular-file metadata, keep the largest N entries, and verify size filters, symlink exclusions, and incomplete scans.……
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Count event dates in an explicit reporting zone, reject naive timestamps, and test midnight boundaries, daylight saving rollback, and failure exits.……
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