Where are my bytes hiding?
Where are my bytes hiding?
- Subject: Where are my bytes hiding?
- From: "Gerriet M. Denkmann" <email@hidden>
- Date: Thu, 05 May 2016 11:47:58 +0700
I just did:
> cd /Applications/Xcode.app/Contents/Developer/Documentation/DocSets/com.apple.adc.documentation.watchOS.docset/Contents/Resources/Tokens/C/tag/-
> ls -skl
There are 8 files. Finder → File → Get Info → Size: has for each: xxx bytes (Zero bytes on disk), where “xxx” is the same number as reported by “ls -skl”.
First question:
How does one achieve this phenomenal compression: 0 bytes on disk - but can expand to several thousand bytes? If this is not a creatio ex nihilo, then: where are these bytes hiding?
Second question:
Finder says about the containing folder: 11,239 bytes (33 KB on disk) for 9 items
11,239 = sum of TotalFileSizes of the 8 files in this folder.
But where do the “33 KB on disk” come from? 8 times “Zero bytes on disk” should be zero, shouldn’t it?
The reason for these questions:
I want to write an app, which counts (for a given folder) the number of bytes stored on disk.
Gerriet.
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