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mbairagi85/experiment4.sh

Created March 13, 2019 06:54
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experiment4.sh
# Remove the file, which belongs to the lower layer.
rm union/javascript
# File doesn't remove from the lower layer.
ls frontend/javascript
> ls frontend/javascript
# Union filesystem creates a whiteout file in upper layer,
# It blocks the visibility of the file.
ls -lh fullstack/upper/javascript
> c--------- 1 root root 0, 0 Mar 13 12:12 javascript
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