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5.0/Calculate-dump-contents-entropy.md

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+
+- [Command Description](#command-description)
+- [Command usage](#command-usage)
+- [Example](#example)
+- [Operating system support](#operating-system-support)
+
+
+## Command Description
+
+This operation will calculate uniqueness and entropy of the media represented by a media dump image. It's not affected by the image format compression if applicable.
+
+## Command usage
+
+```
+Aaru -d [true/false] -v [true/false] image entropy -h [true/false] -p [true/false] -t [true/false] -w [true/false] <image-path>
+```
+
+`-d, --debug [true/false]` shows debug output *(default false)*  
+`-v, --verbose [true/false]` shows verbose output *(default false)*  
+`-h, --help [true/false]` shows help screen for the command instead of running it, ignores all other switches *(default false)*  
+`-p, --duplicated-sectors [true/false]` besides entropy also calculates how many sectors have the exact same data in their user area *(default true)*
+`-t, --separated-tracks true/false]` separately calculates the entropy for each track dividing the media. Only applicable to certain kind of media (optical discs and digital tapes mostly) *(default true)*
+`-w, --whole-disc [true/false]` calculates the entropy for the whole media *(default true)*
+
+## Example
+
+```bash
+Aaru image entropy mydisc.cue
+```
+
+## Operating system support
+
+| OS | Supported |
+|----|-----------|
+| FreeBSD | Yes  |
+| macOS   | Yes  |
+| Linux   | Yes  |
+| Windows | Yes  |