bytesagain Copy — File & Data Copy Operations Reference
Quick-reference skill for file copy strategies, rsync patterns, copy-on-write, and cross-platform synchronization.
When to Use
- Duplicating files or directory trees with specific filters
- Setting up rsync-based backups or mirrors
- Understanding copy-on-write (CoW) behavior
- Implementing efficient copy strategies for large datasets
- Troubleshooting copy failures and permission issues
Commands
intro
scripts/script.sh intro
Overview of copy operations — types, semantics, and platform differences.
rsync
scripts/script.sh rsync
Rsync patterns — common flags, partial transfers, and include/exclude rules.
cow
scripts/script.sh cow
Copy-on-Write (CoW) — reflinks, filesystem support, and when to use.
patterns
scripts/script.sh patterns
Common copy patterns — mirroring, incremental, differential, snapshot.
filters
scripts/script.sh filters
File filtering techniques — by extension, date, size, and gitignore integration.
performance
scripts/script.sh performance
Performance optimization — buffer sizes, parallel copy, and I/O tuning.
errors
scripts/script.sh errors
Common copy errors, permissions issues, and troubleshooting guide.
checklist
scripts/script.sh checklist
Pre-copy and post-copy verification checklist.
help
scripts/script.sh help
version
scripts/script.sh version
Configuration
| Variable | Description |
|---|---|
COPY_DIR |
Data directory (default: ~/.copy/) |
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