PythonBeginner
Analyze ZIP compression efficiency
Rank ZIP members by space saved and flag members larger after compression.
Archives & backups
25 practical automations
Archives & backups
Package, verify, and preserve important files. Each guide includes full code, usage instructions, and ideas for making it your own.
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Audit ZIP names for restore hazards
Report traversal names, duplicate paths, backslashes, and case-only collisions without extracting.
Archives & backups
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Check ZIP CRC integrity
Read ZIP payloads and report the first member failing its built-in CRC check.
Archives & backups
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Combine ZIP archives
Merge multiple ZIPs into a new archive and refuse duplicate member paths.
Archives & backups
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Compare ZIP snapshots
Find added, removed, and changed member payloads across two ZIP archives.
Archives & backups
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Compress a single file with gzip
Create a new gzip stream without removing the source file.
Archives & backups
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Copy only changed backup files
Copy changed or new files relative to a prior checksum manifest and write an updated manifest.
Archives & backups
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Create a deduplicated backup
Store each distinct file payload once, with a relative-path index.
Archives & backups
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Create a folder ZIP snapshot
Package regular files into a new ZIP while preserving relative paths.
Archives & backups
PythonBeginner
Create a portable TAR bundle
Create an uncompressed TAR of regular files with normalized ownership metadata.
Archives & backups
PythonBeginner
Estimate a backup size
Calculate uncompressed bytes and free-space headroom before creating a backup.
Archives & backups
PythonBeginner
Exclude members from a ZIP copy
Create a new ZIP omitting member paths matching a glob.
Archives & backups
PythonBeginner
Expand a gzip file with a byte limit
Restore a gzip stream while stopping if expanded bytes exceed the configured limit.
Archives & backups
PythonBeginner
Extract a ZIP into a new folder
Extract regular ZIP members after path, collision, symlink, and expanded-size checks.
Archives & backups
PythonBeginner
Inspect ZIP contents
List member names, expanded bytes, and compressed bytes without extracting.
Archives & backups
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Pack size-limited ZIP volumes
Group source files into ZIPs by a maximum uncompressed payload budget.
Archives & backups
PythonBeginner
Reassemble transport chunks
Verify numbered backup chunks and join them into one new file.
Archives & backups
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Replace a member in a ZIP copy
Substitute one exact member using a local file while preserving the source archive.
Archives & backups
PythonBeginner
Restore a deduplicated backup
Recreate file paths from a content-addressed backup after checking object hashes.
Archives & backups
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Restore changed files between ZIP snapshots
Extract only added or changed members from a newer ZIP compared with a baseline ZIP.
Archives & backups
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Restore regular TAR files
Extract only regular files and directories after validating TAR member paths and sizes.
Archives & backups
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Restore selected ZIP members
Restore only members matching a full relative-path glob.
Archives & backups
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Search text inside a ZIP
Report matching lines from small UTF-8 ZIP members without extracting them.
Archives & backups
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Split a backup into transport chunks
Split any backup file into numbered chunks with a SHA-256 reassembly manifest.
Archives & backups
PythonBeginner
Verify files against a checksum manifest
Report missing, changed, and additional files relative to a saved manifest.
Archives & backups